Async comes up but encapsulation fails [7:13834]
Hi, I am working on a senerio where i have to connect two sites by POTS and trigger a DDR when needed. When i ping the other end the DDR initiates and LCP , CDPCP and IPCP are open but when i start debug ip packet it says encapsulation failed any help!!! -Mamoor Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13834t=13834 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: access list.. [7:13564]
hi ejay.. sunet calc wont calc wild mask or does it? Best Regards -Original Message- From: Hire, Ejay [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 12:42 AM To: [EMAIL PROTECTED] Subject: RE: access list.. [7:13564] No, Solution2 is correct. The objective was to permit x.x.240-255.0-255 per the original message : What mask would be used if you want to create an access list where the IP addresses (128.252.0.0 to 128.252.240.0) would be blocked pls support with explanation, You can check it with the subnet calculator from B0s0n Software. -ejay -Original Message- From: Farhan Ahmed [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 2:23 PM To: 'Hire, Ejay'; [EMAIL PROTECTED] Subject: RE: access list.. [7:13564] solution2; will permit 1-240 range and the deny statement will deny the rest thats opposite to get a wild mask we put higher minus lower 255.255.255.255 255.255.240. 0 0 015 255 so the router will permit 1-240 instead -Original Message- From: Hire, Ejay [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 9:22 PM To: 'Farhan Ahmed'; [EMAIL PROTECTED] Subject: RE: access list.. [7:13564] Objective: Create an Access list to block the source address range 128.252.0.0 to 128.252.240.0 Solution 1: access-list 1 deny 128.252.0.00.0.127.255 Blocks 128.252.0-127.0-255 access-list 1 deny 128.252.128.0 0.0.63.255 Blocks 128.252.128-191.0-255 access-list 1 deny 128.252.192.0 0.0.31.255 Blocks 128.252.192-223.0-255 access-list 1 deny 128.252.224.0 0.0.15.255 Blocks 128.252.224-239.0-255 access-list 1 permit any Allows all other traffic to pass. Solution 2: access-list 1 permit 128.252.240.0 0.0.15.255 Permits 128.252.240-255.0-255 access-list 1 deny 128.252.0.0 0.0.255.255 Denies traffic from 128.252 that is not permitted by the previous line access-list 1 permit any Notes: Both Solutions work, but solution 2 has less lines and will result in less processor utilization in most scenarios. -Ejay -Original Message- From: Farhan Ahmed [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 24, 2001 2:29 PM To: [EMAIL PROTECTED] Subject: access list.. [7:13564] What mask would be used if you want to create an access list where the IP addresses (128.252.0.0 to 128.252.240.0) would be blocked pls support with explanation, [GroupStudy.com removed an attachment of type application/octet-stream which had a name of Farhan Ahmed.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13835t=13564 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Hello All [7:13821]
welcome,as we need a voice specialist like you on the list. Can I ask you to recommend for me the best books explaining voice technology (over ip,frame relay and ATM) either from Cisco Press or from others?? Mustafa For CCIE wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Greetings to everybody! I have heard this list from a friend and I believe it will help me to get Routing Switching CCIE as well as my general networking knowledge. Let me introduce myself a little bit: My name is Mustafa Tinmaz. I am working as a TAC engineer for Cisco Systems. I guess I cannot help that nuch regarding data but can provide input for voice questions that you may have as I am supporting VoIP technology in Cisco. happy computing!!! mustafa _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13836t=13821 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Catalyst 6509 vs BlackDiamond [7:13837]
How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13837t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
mpls_cisco [7:13839]
Hi! How are you? I send you this file in order to have your advice See you later. Thanks [GroupStudy.com removed an attachment of type application/mixed which had a name of mpls_cisco.doc.com] [GroupStudy.com removed a section which didn't have a content-type header] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13839t=13839 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: A message from the CCIE Program [7:13789]
Since I can't add an attachment I copy and pasted Caslow's response as presented to me when I e-mailed Lorne at Cisco regarding my concerns and Cisco's motivations for changing the lab format. Date: July 10, 2001 To: Lorne Braddock, Cisco Systems From: Bruce Caslow, Mentor Technologies Subject: A Review of the New One Day CCIE Lab Examination Format After reviewing the new one day CCIE lab examination format, I report the following observations: When I was first asked to review the new one day CCIE lab examination format, my first reaction was that many of the tasks that are currently in the traditional two day CCIE lab would be removed from the new one day lab and as a result, the new one day lab format would be easier than the traditional two day lab. When I actually reviewed the new one day CCIE lab exam, my first presumption was affirmed however my second presumption was not. Yes, tasks that are in the current two day CCIE lab exam have been removed from the proposed one day CCIE lab exam. However, the new one day exam is not easier to pass than the two day exam. From the very beginning of the test, the new one day CCIE lab forces the test taker to immediately begin configuring a hefty load internetworking topics. For the entire period of the one day test, there is a relentless pressure to complete an extensive list of configuration tasks. One may ask the following questions, What topics are covered in the new one day CCIE lab exam format? Is the list of topics used to create the one day CCIE lab exam different from the list of topics used create the current two day exam? From an internetworking configuration requirements perspective, there seems to be no difference between the two day CCIE lab exam and the one day CCIE lab exam. Every internetworking topic that is considered fair game in the two day CCIE lab might also appear in the new one day exam format. Therefore, from a breadth of topics to study perspective, the new one day CCIE lab exam is identical with the two day CCIE exam. Quite simply, the new one day CCIE lab exam format is a rigorous single day of performing a series of configuration tasks on the same wide range of internetworking topics that are found in the current two day CCIE lab. Emphasis of the previous sentence must be placed on the word CONFIGURATION. In the two day CCIE lab the following tasks are encountered: Day One 1. Review examination tasks 2. Examination equipment rack cable up 3. Terminal server configuration 4. IP address planning 5. Configure of a range of internetworking technologies for the remainder of Day One Day Two 6. Review examination configuration tasks for Day Two (Redundant with Step 1in Day One) 7. Continue configuring a range of internetworking technologies for the first half of Day Two (Redundant with Step 4 in Day One) 8. Troubleshooting the second half of Day Two The new one day CCIE lab examination format consists of the following tasks: 1. Review examination tasks 2. Configure a range of internetworking topics When comparing the two day format with the one day format, it is obvious that the following tasks have been removed from the new one day CCIE lab exam: Examination equipment rack cable up Terminal server configuration IP address planning The explicit troubleshooting section In the two day CCIE lab exam, the explicit troubleshooting section consumed one half of a day. Also, the two day CCIE lab exam required test takers to perform the following three morning of the First Day tasks: (1) cabling up the equipment rack, (2) configuring the terminal server and (2) planning an IP addressing scheme. Performing these three morning of the First Day tasks consumed at least one hour. When the explicit half day troubleshooting section as well as the three above mentioned morning of the First Day tasks are removed from the two day CCIE lab, what is let is the heart of the CCIE lab exam: approximately nine hours of rigorous CONFIGURATION tasks. The identical core of the current two day CCIE lab an extensive set of configuration tasks involving a wide range of internetworking topics- is found in the new one day CCIE lab. While the two day CCIE lab provides approximately nine hours to perform a set of configuration tasks over a one and one half day period, the one day CCIE lab provides only 7.5 hours in a single day. It appears that the formula the Cisco CCIE testing team used to create one day CCIE lab is the following: 1. Take the current configuration tasks used in the existing CCIE Two Day Lab exam and reformat them into a one day format. 2. Apply the configuration tasks mentioned in Step One above to the exact same rack of test equipment used in the existing two day CCIE Two Day Lab 3. Remove the follow tasks from the CCIE lab: Examination equipment rack cable up Terminal server configuration IP address planning The explicit troubleshooting section By removing the tasks above, at least four hours of time
Re: cit [7:13603]
Focus on questions about : 1- Protocol analyzers (you must be able to detect the problem from the analyzer O/P). 2- The CIT book appendix about Cisco TAC,Tools,S/W centre,(there're many questions about that part) Send me ur mail and i'll send u a good dump. Moahzam Durrani wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... any hints for CIT. Are there alot of appletalk and ipx questions ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13840t=13603 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Catalyst 6509 vs BlackDiamond [7:13837]
very true. mishaal wrote: How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13844t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: permit ip any any [7:13686]
Hi Tony, remember that the direction to which you apply an access list is dependant on the router, for example: applying an access list IN on a router mean packets going inbound on the interface, this is independant of what you want to deny, ie inbound snmp. so for example to block SNMP from the internet to your network you would create and access list denying snmp from any to any and apply it INbound on the serial interface on the router. To block snmp from from local lan to the router you would apply it INbound on the ethernet interface. So I would hazzard a guess that you are not applying the access list in the appropriate direction. Where is the host you want to permit traffic to?? If it's on other end of your serial interface than you should be applying the access list outbound on the serial interface. This means that any devices behind the serial interface will be able to access ONLY that host on the specified ports. internet---router-localLAN -S1-router-E1 direction of traffic filtered using the outbound statement hope that helps Ciaron -Original Message- From: Tony van Ree [mailto:[EMAIL PROTECTED]] Sent: 25 July 2001 23:37 To: [EMAIL PROTECTED] Subject: Re: permit ip any any [7:13686] Hi, It would depend on where you put the access-list. For example if you put this on the WAN side of your router without specifying incoming in the access-group statement the it would surely fail. For this access-list to work in an outgoing direction it would need to be on the Ethernet. My guess is that this is the issue in otherwords the access-list is facing the wrong way when applied. Just a thought, Teunis, Hobart, Tasmania Australia On Tuesday, July 24, 2001 at 10:41:44 PM, Guy Russell wrote: Im not sure what you mean by shutting down the ports, but dont forget the implicit deny that is not seen... denying all can you access the web or mail services etc... on that machine Is it applied to the correct interface.. Is S1 closer to the destination, or source. - Original Message - From: John Brandis To: Sent: Tuesday, July 24, 2001 9:12 PM Subject: permit ip any any [7:13686] Hi ya, another ACL question I have a pretty simple ACL at the moment ip access list 110 permit tcp any host 203.111.xxx.215 eq 25 permit tcp any host 203.111.xxx.215 eq 80 permit tcp any host 203.111.xxx.215 eq 25 permit tcp any host 203.111.xxx.215 eq 53 permit udp any host 203.111.xxx.215 eq 53 I put this on the the s1 int (run a stub network) in. However, the second I apply this it actually shuts these ports down, like the opposite of what I thought was to happen. I changed the direction of the ACL but it did not effect the end result. Do I have to use the permit ip any any now, would that not go against the use of permitting only certain ports... Thanks for your help... John Sydney Australia -- www.tasmail.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13842t=13686 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: eigrp secondary address(some partical routing lost) [7:13841]
Eric ding wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... such as below: routerA(fas0)(fas0)routerB routerA# interface fas0 ip add 1.1.1.1 255.255.255.0 router ei 1 net 1.0.0.0 no au routerB# interface fas0 ip add 1.1.1.2 255.255.255.0 ip add 1.1.2.2 255.255.255.0 router ei 1 net 1.0.0.0 no au from the debug ip ei output ,i saw that routerB advrtise the route 1.1.2.0 255.255.255.0 out fas 0, but from the routerA,use sh ip ei to,i can't see route to 1.1.2.0 from routerA. both routers got ios 12.0,ip ei nei established. thanks in advance! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13841t=13841 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
test msg [7:13845]
[GroupStudy.com removed an attachment of type text/x-vcard which had a name of karuna_nrich.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13845t=13845 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Why can't I ping router interface? [7:13736]
well bware, I think you'll find that your nic card1 172.16.x.x will not route anything to an ip address such as 172.16.64.15 because as far as that network is concerned that is a LOCAL address. ie on a local network, it will arp for the mac of that IP which it will never find... but won't ever route as you only route between DIFFERENT networks. so, to route across the two, you should change either the first or second octet to something different.. 172.17.x.x than routing will work, or change to a class C subnet mask. remember that the class B mask on your 172.16.x.x network determines host address's so any 172.16.x.x address is local address. ie 172.16.64.15 wouldn't be sent to a DG because it's a local address. No offence bware, but I think you should do some reading on routing, as this is quite basic. Ciaron -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 25 July 2001 11:53 To: [EMAIL PROTECTED] Subject: Why can't I ping router interface? [7:13736] I have a Win2K machine which is acting as multihomed PC having 2 ethernet card .IP adresses for these cards are Card 1 -- 172.16.0.2 255.255.0.0 Card 2 -- 172.16.64.15 255.255.255.0 I have BNC connectivity on 172.16.0.2 side PC wherein the users are trying to acess applications through router having its ethernet adress as 172.16.64.1 ,now I can ping from pc on BNC (ip address 172.16.0.12 ) to 172.16.0.12 but cannot ping to 172.16.64.15 interface or even the router interface 172.16.64.1 ,even from the multihomed PC I am unable to ping 172.16.64.1,I have added proper routers on the multihomed pc as well on the normal pc (172.16.0.12_ using rioute add commands. Can anyboby help me ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13843t=13736 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
question on ipunumbered [7:13846]
Why when using unnumbered interfaces, any routing protocol running across the serial line must not advertise subnet information ? Thanks in advance _ For Rs. 2,000,000 worth of Aptech scholarships click below http://events.rediff.com/aptechsch/scholarship.htm Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13846t=13846 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
classless routing [7:13847]
Can you please explain what would happen and why. A router has ip classless enabled. It's routing table has entries for 10.5.0.0/16 and 10.6.0.0/16 and a default route 0.0.0.0. A packet arrives for a destination on 10.7.0.0/16. Which route does it take ? thanks in advance _ For Rs. 2,000,000 worth of Aptech scholarships click below http://events.rediff.com/aptechsch/scholarship.htm Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13847t=13847 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Catalyst 5509 [7:13848]
Hi, Anyone knows how to enable ACL or some form of telnet control to the switch. Is there any instructions on how to control the SNMP query as well. Thanks, Andy Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13848t=13848 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Problems with AIM compression on 3660/2600 [7:13742]
Hi Bob The IOS version on all the routers are 12.0(7)XK1 Simon From: Bob Johnson Reply-To: Bob Johnson To: [EMAIL PROTECTED] Subject: RE: Problems with AIM compression on 3660/2600 [7:13742] Date: Wed, 25 Jul 2001 13:36:30 -0400 In my previous reply I'm refering to the (as far as I know..) the OSPF multicast messages being mucked up... Bob (still trying to find the bug ID) -Original Message- From: Bob Johnson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 10:01 AM To: [EMAIL PROTECTED] Subject: RE: Problems with AIM compression on 3660/2600 [7:13742] Most likely the hardware compression is mucking up the multicast traffic... I've had many many issues with hardware compression and multicast (got to know TAC people all across the world).. I'll try to dig up the bug ID. What image are you using? Bob -Original Message- From: Simon Watson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 5:25 AM To: [EMAIL PROTECTED] Subject: Problems with AIM compression on 3660/2600 [7:13742] Hi Guys I have just installed a 3660 and 7 2600's (the 2600's connected to the 3660with 256k WAN links via 2 quad serial cards on 3660). ospf configured(all routers on area 0), I have just changed the compression from software to hardware to ultilize the AIM modules installed in both the 3660 2600's( I set up PPP Encapsulation from HDLC on all routers, and configured compress stac caim 0 on 2600's compress stac caim 0-3 on 3660) However as soon I made the change I was receiving the OSPF error message: SPF-4-ERRRCV: Received invalid packet: Bad Checksum from 10.100.6.1, Serial0/0 Jul 25 03:27:15: %OSPF-4-ERRRCV: Received invalid packet: Bad Checksum from 10.100.6.1, Serial0/0 Jul 25 03:27:21: %OSPF-4-ERRRCV: Received invalid packet: Bad Checksum from 10.100.6.1, Serial0/0 This was happening on all the 2600's, OSPF routes were being lost, on when I reverted to software compression the problem subsided. Has anyone seen this problem before.Pls let me know Rgrds Simon. -- -- Get your FREE download of MSN Explorer at http://explorer.msn.com _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13850t=13742 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multiple EIGRP Processes [7:13774]
SNIP Well, in my situation, as soon as eigrp AS 2 is implemented on B and C, B loses all the routes advertised by C until I clear the eigrp neighbors. At that point this begins to work correctly. END SNIP. I don't think you've got anything wrong here, but you maybe just pushing EIGRP a bit to far without outside assistance i.e Clearing the neighbor table. Why not try taking off AS 1 first and then add AS 1 and AS 2 to Router B. Try fiddling different combinations. My understanding is that initially i.e before you add AS 2 the multicast Hello packet will just contain AS 1 and when you add AS 2 to B the Hello packet should contain 2 entries as opposed to two separate hello packets. (If you get my meaning) !!! Regards, Phil. --- John Neiberger wrote: Let's say I have the following topology: A | | B--C | | D Routers A, B, and C are participating in EIGRP AS 1, so those three routers are aware of everything except routes on the other side of D. Then, I add EIGRP AS 2 to routers B, C, and D but not A. It's my understanding that Router A will only be aware of the directly connected links of routers B and C, and router D will only know of the directly connected links of routers B and C. Router A should not be aware of any link on router D except for the B--D link. Now, B has two topology tables with some duplicate routes learned from router C, or at least it should. As soon as I turn on eigrp AS 2 on B and C, no routing information should be lost, correct? If Router C is advertising a given subnet via eigrp AS 1 and AS 2, router B should always be aware of it no matter what, right? Well, in my situation, as soon as eigrp AS 2 is implemented on B and C, B loses all the routes advertised by C until I clear the eigrp neighbors. At that point this begins to work correctly. Then, when I removed eigrp AS 2--leaving eigrp AS 1-- on B and C, those routes disappear again! As before, clearing the eigrp neighbors resolves the issue but I don't understand why this would be happening. I believe it's a bug but I'm not sure. There are some bugs related to routes being in the topology table that aren't being inserted into the routing table, but I don't know for certain those apply here. Is my thinking correct here or am I missing something? Thanks, John p.s. Don't ask why I'm doing this, just go with me on it, okay?? ;-) [EMAIL PROTECTED] Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13851t=13774 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
MPLS over ISDN [7:13849]
hi, has anyone implemented ISDN backup with MPLS? If so would you mind sending me a sample config. I have been trying to get this working with a PRI but have not been successful. The isdn part works fine. If I ping across the point-to-point link (PE to CE) it works. As soon as I bind the dialer interface to a VRF and enable CEF it does not work. If I disable CEF I can ping across - CEF is needed though as it does the mpls label impositioning. Any help would be appreciated. thanks in advance George This e-mail may contain confidential information and may be legally privileged and is intended only for the person to whom it is addressed. If you are not the intended recipient, you are notified that you may not use, distribute or copy this document in any manner whatsoever. Kindly also notify the sender immediately by telephone, and delete the e-mail. When addressed to clients of the company from where this e-mail originates (the sending company) any opinion or advice contained in this e-mail is subject to the terms and conditions expressed in any applicable terms of business or client engagement letter . The sending company does not accept liability for any damage, loss or expense arising from this e-mail and/or from the accessing of any files attached to this e-mail. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13849t=13849 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Catalyst 6509 vs BlackDiamond [7:13837]
bryan cc: Sent by: Subject: Re: Catalyst 6509 vs BlackDiamond [7:13837] nobody@groups tudy.com 07/26/2001 04:29 AM Please respond to bryan Bryan - Can you elaborate on this a little bit? We are in the process of installing both BD's and Alpines and I have heard mixed reviews. Thanks! Patrick very true. mishaal wrote: How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13852t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Catalyst 5509 [7:13848]
Console (enable) set ip permit 172.16.0.0 255.255.0.0 telnet 172.16.0.0 with mask 255.255.0.0 added to telnet permit list. Console (enable) set ip permit 172.20.52.32 255.255.255.224 snmp 172.20.52.32 with mask 255.255.255.224 added to snmp permit list. Console (enable) set ip permit 172.20.52.3 all 172.20.52.3 added to IP permit list. Console (enable) show ip permit http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/rel_6_1/config/s nmp.htm Best Regards Have A Good Day!! Farhan Ahmed MCSE+I, MCP Win2k, CCDA, CCNA, CSE, CCNA Network Engineer Mideast Data Systems Abudhabi Uae. Privileged/Confidential Information may be contained in this message or Attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, Conclusions and other information in this message that do not relate to the Official business of this company shall be understood as neither given nor Endorsed by it. -Original Message- From: Andy Low [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 1:24 PM To: [EMAIL PROTECTED] Subject: Catalyst 5509 [7:13848] Hi, Anyone knows how to enable ACL or some form of telnet control to the switch. Is there any instructions on how to control the SNMP query as well. Thanks, Andy [GroupStudy.com removed an attachment of type application/octet-stream which had a name of Farhan Ahmed.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13853t=13848 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: A message from the CCIE Program [7:13789]
below is what I believe the source of this thread is about. It looks like some else had also e-mailed Lorne, except Lorne sent him two reports instead of just the one from Caslow as was done for me. Below is Mr. Remakers remarks. Mr. Phil Remaker is one of the first people to achieve CCIE certification and in 1995 Mr. Remaker was featured in a Wall Street Journal article focusing on the technical genius behind the exploding Internet. Mr. Remaker is employed by Cisco Systems as a technical advisor. His reaction to the improved CCIE lab exam were: Well, first of all, to end the suspense, I failed the lab with a score of 34/100. This is not unexpected, since I didn't study and have never worked much with the Catalyst switches. And taking a few years off the day-to-day hands-on work really rusts your skills. So the good news is that the test is not easy. It is also not impossibly hard. It is full of nuance and interdependency, and has some very good exercises in interfacing to external networks (IPX, BGP, frame-relay) and administrative issues (filtering, redistribution, port security). Stuff you do in one section affects others, yet it is not so interwoven that you cannot skip around and focus on ones strengths. Also, by dropping the mundane basic config stuff, more time is focused on the things that really test your skills, not your ability to type in tedoius information (people that fail to type in the tedious info will probably also fail the lab). I had the luxury of reviewing the exam question by question with feedback from Jeff and Howard, and I gave some feedback on how the questions might be clearer of how the scenarios might be tweaked. But on the whole, the exam as it stands was very good, testing time management, documentation reading, and network configuration skills. I did miss having the wiring just a little, but I think that modern networks are much more virtualized and that wiring is less relevant in complex networks as everything gets VLANned. The ability to find a wiring problem is still a serious skill, and I suggested that maybe one of the prewired networks be wired on the wrong port and force people to find it 8-). The lack of partial credit killed me, too. I got SO CLOSE on so many of the questions! But I agree with the policy, since subjectivity could kill the exam credibility. You might want to emphasize to candidates (maybe you already do) that there is no partial credit. Another measure of a good exam is Did I learn something from taking the exam? The answer here is YES! I learned about ISL and ATM (which I had never used before, only read about) and a little about route-tagging and distribution lists that I had not previously known. I even learned about some Cisco capabilities that I didn't know existed (port security). I am a believer in the one-day lab. Anyone CCIE that thinks it cheapens the CCIE should come in and try to pass it. We should invite the anti-one-day activists to come in and take the test for free ONCE so they can give us feedback. I think the test hits the mark. Thanks for inviting me in to try the exam. And thanks to Jeff and Howard for their overtime to accommodate my San Jose schedule. Kudos to the exam authors. Enid Sorkowitz wrote: I am posting this per Lorne Braddock's request. Please don't directly respond back to me or Lorne because we simply can't reply to everyone and don't want to appear disrespectful. Regards, Enid Sorkowitz Manager, Customer Service CCIE Program The CCIE program team at Cisco Systems, Inc. recently announced a revised lab exam format and that sparked a good deal of discussion on this study group alias. I personally do not belong to the alias but one particular message was brought to my attention because it was not only inaccurate, it was potentially damaging. Someone posted what they represented as being valid test score results achieved by Phil Remaker and Bruce Caslow during their voluntary review of the our new CCIE lab exam format. Those were NOT valid test scores so the information posted by this individual was not only inaccurate and inappropriate, it was misleading and had the potential of professionally damaging the two individuals he was attributing the scores to. Because I do
FW: classless routing [7:13847]
-Original Message- From: Burnham, Chris Sent: 26 July 2001 12:14 To: 'suleman ibrahim aboo' Subject: RE: classless routing [7:13847] It will take the default route for the following reason: first of all I assume that you are running a classfull protocol such as RIP or IGRP. When running a classfull protocol subnetting a major class network as below( 10.6.0.0 is a subnet of 10.0.0.0) etc, the contigous rule states that all subnets will be using the same mask and must be contigous, therefor the router assumes that it knows about all subnets. When the packet arrives for 10.7.0.0/16 it will do a classfull lookup on the subnet information it know's about ie. the first two octets, it will not find a route and drop the packet. For a classfull protocol with no ip classless the default route will only be used for different major class networks eg. a packet for 11.7.0.1 would hit the default route. however this changes when ip classless is turned on ( on by default).IP classless will over ride the contigous rule and make the router look for the longest match. Therefor in answer to you question the packet for 10.7.0.0/16 will hit the default route when IP classless is on but will be dropped if no ip classless is configured. NB. This is easily tested if you have two routers available. I hope this helps Chris.B -Original Message- From: suleman ibrahim aboo [mailto:[EMAIL PROTECTED]] Sent: 26 July 2001 09:57 To: [EMAIL PROTECTED] Subject: classless routing [7:13847] Can you please explain what would happen and why. A router has ip classless enabled. It's routing table has entries for 10.5.0.0/16 and 10.6.0.0/16 and a default route 0.0.0.0. A packet arrives for a destination on 10.7.0.0/16. Which route does it take ? thanks in advance _ For Rs. 2,000,000 worth of Aptech scholarships click below http://events.rediff.com/aptechsch/scholarship.htm This e-mail and any files transmitted with it are intended solely for the addressee and are confidential. They may also be legally privileged. Copyright in them is reserved by Delphis Consulting PLC [Delphis] and they must not be disclosed to, or used by, anyone other than the addressee. If you have received this e-mail and any accompanying files in error, you may not copy, publish or use them in any way and you should delete them from your system and notify us immediately.E-mails are not secure. Delphis does not accept responsibility for changes to e-mails that occur after they have been sent. Any opinions expressed in this e-mail may be personal to the author and may not necessarily reflect the opinions of Delphis. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13855t=13847 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Async comes up but encapsulation fails [7:13834]
Have you verified the the encapsulation type on either side? We use CHAP as it is professed to be more secure using the chanllenge-response method. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13856t=13834 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Just passed 640-503 [7:13485]
The main focus of the exam seems to be on OSPF EIGRP and BGP, other than that there is a few questions on rip igrp and vlsm Jianfeng Wang wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I noticed that sypress ccnp 503 routing book has dropped all wan portion in 403. Is that mean the new test of 503 don't have wan questions? Thanks in advance for your advice. Preston Kilburn wrote: Hey man, congradulations on that. -P.Kil [GroupStudy.com removed an attachment of type text/x-vcard which had a name of jeffrey.wang.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13857t=13485 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN routing [7:13465]
Ok, one more round of nit picky comments and I'll quit :) Do I need a router between my VLANs? If you want the VLANs to communicate with each other. Are these trick questions? ;-) I realize there are cases where you don't want them to communicate. I guess that is what you are getting at. If you want VLANs to share the same broadcast domain, you bridge them. Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. Do I need an IP address on my VLANs? Some sort of network-layer addressing is required for end stations to communicate using typical applications. There are some cases where network-layer addressing is not used, of course, but that sort of communication is being phased out. Again, if you want to route layer three protocols, you use a router. In multiprotocol networks, such as those tested on the CCIE exam, it is often necessary to support a mix of protocols, some of which need to be routed across broadcast domains while others are bridged. Understanding this is much easier when you don't believe in the tooth fairy. Can I route between VLAN 1 and VLAN 2 with just a switch? No, not a Layer 2 switch. Bad question :) You can certainly bridge two VLANs, essentially creating one. I should have said connect vs route. The point is to illustrate the difference between layer two broadcast domains and routing, thus reinforcing the point that if you want to route, you use a router. There are no exceptions to this rule. Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and errors with subnet mask configurations, etc., but let's consider the typical case. This is my point. To route, you need a router. VLANs haven't changed this whatsoever. I simply find that too many people misunderstand the VLAN concept simply because vendor marketing has confused the issue and numerous pieces of literature make the layer 3 to VLAN binding without properly developing the difference. Nit picky I know, but its a pet peeve. Pete Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13858t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Question for Support exam [7:13859]
Hi all, Here I have one Support exam question, need your answer and explanation. Thanks. What does a switch vlan correspond to the vlan routing paradigm? 1) Bridge Group 2) Router interface 3) ISL trunk identifier 4) Single routed subnet 5) Spanning-tree branch Regards, Yan Yin Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13859t=13859 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: classless routing [7:13847]
The /16 means that the network in the address given are the first 16 bits, or in other words the first two octets. Therefore: 10.5.0.0/16 gives network 10.5 10.6.0.0/16 gives network 10.6 10.7.0.0/16 gives network 10.7 Since there are no table entries for network 10.7, it will use the default route. Hth, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: suleman ibrahim aboo [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 3:57 AM To: [EMAIL PROTECTED] Subject: classless routing [7:13847] Can you please explain what would happen and why. A router has ip classless enabled. It's routing table has entries for 10.5.0.0/16 and 10.6.0.0/16 and a default route 0.0.0.0. A packet arrives for a destination on 10.7.0.0/16. Which route does it take ? thanks in advance _ For Rs. 2,000,000 worth of Aptech scholarships click below http://events.rediff.com/aptechsch/scholarship.htm Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13860t=13847 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 640-509 [7:13815]
Hi, While I am bound by the Agreement to Cisco not to divulge any answers to the questions you have concerning the Foundation 2.0, I can tell you that it was the most grueling examination I have ever been administered, rivalling only a few of my undergraduate examinations. I took the exam yesterday and was elated when it was over. It seemed like a couple of hours from the time I started until the time I was done. I passed but only as through fire. I don't mean to scare you, however, understand that this test is not for the faint of heart or for the impatient! I commend you on your attempt to pass this exam and encourage you to do so. Believe me, if I can pass this test then most anyone can. Do know your Routing, Switching, and Remote Access like the back of your hand and you should have no problems responding to the questions. My problem was that I was a bit shaky with regards to my knowledge on Routing which contributed to my anxiety and resultant score. I still passed, but, like I already mentioned, only as through fire. Know the material from the Cisco Press books and be able to crunch numbers, configure equipment, and make logical recommendations as to hardware. Apart from the CCIE written, this test is probably the summation of all Cisco Networking (sans CIT). One tip. Stay far away from the Boson Foundation 2.0 Practice Exam #1. It was a complete waste of my hard-earned money. It did not prepare me for this exam one iota. In Christ, Raul De La Garza III *CCDP* NNCSS MCSE CNE Original Message Follows From: Ntia Yinka Reply-To: Ntia Yinka To: [EMAIL PROTECTED] Subject: 640-509 [7:13815] Date: Wed, 25 Jul 2001 19:10:14 -0400 Hi, I'm preparing for the CCNP foundation Exam 640-509. Considering the fact that it's a combination of the other three exams i.e 640-503, 4 and 5. Can anyone help me with the following: 1. What is the time limit for the exam? 2. How many questions (I know there are three sections) 3. What's the passing score. This would assist in my preparation. Thank you. _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13861t=13815 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
QUERY ON FRAME RELAY, Can't ping to it's own interface [7:13862]
Hello, Can anybody explain why we I can't ping to local multipoint sub interface..? int s0 encapsulation frame relay frame-relay lmi-type ansi int 0.1 multipoint ip add 172.16.1.1 255.255.255.248 frame-relay interface-dlci 200 frame-relay interface-dlci 300 i can't ping to 172.16.1.1 locally, tx Grad _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13862t=13862 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Async comes up but encapsulation fails [7:13834]
Both the routers get connected but can't ping both side and says encapsualtion failed the config on both side for async port is interface Async1 ip address 192.168.4.2 255.255.255.0 no ip directed-broadcast encapsulation ppp keepalive 10 dialer in-band dialer wait-for-carrier-time 5 dialer map ip 192.168.4.1 35 dialer-group 1 async default routing async mode dedicated ! router rip network 192.168.4.0 network 192.168.5.0 ! line aux 0 login local modem InOut modem autoconfigure type usr_sportster transport input all stopbits 1 speed 38400 flowcontrol hardware = help me!! Bruce McNamara wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Have you verified the the encapsulation type on either side? We use CHAP as it is professed to be more secure using the chanllenge-response method. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13863t=13834 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13862]
Hi! Maybe you should add a map for it? Dragi Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13865t=13862 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCDA [7:13826]
In my humble opinion the CCDA was not REAL hard but it was challenging. I probably should have bought Pricilla's Top Down book. I used practice test and Cisco press books. There still was questions on the test that where not in any of the study material I studied. Case studies are no problem. regards, Steve -Original Message- From: Albert Y. Pak [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 9:03 PM To: [EMAIL PROTECTED] Subject: CCDA [7:13826] I got some questions regarding to this exam. Currently, I passed BSCN and BCMSN 2 weeks ago. And I am planning to take CID as soon as I am done with CCNP. Is CCDA exam hard? Will I be able to do this right now without spending too much time to study? I am in the networking field almost 4 years. Thanks!!! Albert Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13864t=13826 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT Mailing Lists [7:13866]
Group, This is a bit off topic. But i was wondering if anyone could recommend any mailing lists that help candidates attempting the RHCE and MCSE 2k. Any information will be appreciated. Thanks Dale Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13866t=13866 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN routing [7:13465]
Ok, one more round of nit picky comments and I'll quit :) Do I need a router between my VLANs? If you want the VLANs to communicate with each other. Are these trick questions? ;-) I realize there are cases where you don't want them to communicate. I guess that is what you are getting at. If you want VLANs to share the same broadcast domain, you bridge them. Which can be dangerous from a scaling standpoint, unless all the bridged parts are under common administration. One of the reasons to have reasonable size broadcast domains is to limit broadcast loads on hosts; it is NOT a bandwidth problem. It is a broadcast problem whether the network is IP, IPX, NetBEUI, etc. I find a lot of optical people getting confused and recommending layer 2 VPNs because they think that interconnecting (i.e., bridging) will magically work because they use full OC-192 lambdas between them. That has nothing to do with the core problem. Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. Do I need an IP address on my VLANs? Some sort of network-layer addressing is required for end stations to communicate using typical applications. There are some cases where network-layer addressing is not used, of course, but that sort of communication is being phased out. Again, if you want to route layer three protocols, you use a router. In multiprotocol networks, such as those tested on the CCIE exam, it is often necessary to support a mix of protocols, some of which need to be routed across broadcast domains while others are bridged. Understanding this is much easier when you don't believe in the tooth fairy. Ah, but if you have the tooth fairy as the administrator of an L3 switch... Mind you, I consider L3 switches and tooth fairies about the same. If it makes L3 decisions, it's a router. It may be a router with hardware distributed forwarding, or it may be a router with a single processor for control and forwarding. It's still a router. Can I route between VLAN 1 and VLAN 2 with just a switch? No, not a Layer 2 switch. Bad question :) You can certainly bridge two VLANs, essentially creating one. I should have said connect vs route. The point is to illustrate the difference between layer two broadcast domains and routing, thus reinforcing the point that if you want to route, you use a router. There are no exceptions to this rule. And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and errors with subnet mask configurations, etc., but let's consider the typical case. This is my point. To route, you need a router. VLANs haven't changed this whatsoever. I simply find that too many people misunderstand the VLAN concept simply because vendor marketing has confused the issue and numerous pieces of literature make the layer 3 to VLAN binding without properly developing the difference. Nit picky I know, but its a pet peeve. Pete I personally regard VLANs, first and foremost, as a means of multiplexing a LAN. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13867t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: access list.. [7:13564]
Farhan, You need to understand how this works, and the best thing to do is to grap a pen and a paper and write down the addresses, first in decimal, and then in binary. Let's try... The numbers you wish to block here are 224 thru 239: 224 : 1110 225 : 1110 0001 226 : 1110 0010 227 : 1110 0011 228 : 1110 0100 229 : 1110 0101 230 : 1110 0110 231 : 1110 0111 232 : 1110 1000 233 : 1110 1001 234 : 1110 1010 235 : 1110 1011 236 : 1110 1100 237 : 1110 1101 238 : 1110 1110 239 : 1110 As you can see, this is an easy range, since the first four bits are the same in the entire range, and the last four bits change from to . Since the first four bits are the same in the entire range, you can CARE about them, and NOT CARE about the last four bits. Therefore, the address must be 1110 , or 224 in decimal, and the wildcard mask must be , or 15 in decimal. Remember, in the wildcard mask 0 CARES and 1 DON'T. You can test this now with any of the values written in decimal and binary above. Let's take 233 for example. 233 : 1110 1001 (the address trying to get through) 224 : 1110 (the deny address) 15 : (the deny wildcard) Since the last four bits of the wildcard are 1's, you can ignore them, and only concentrate on the 0's, because they are the ones that must match. The 0's represent the first four bits of the address, and as you can see, address 233 will be stopped by the 224, because the first four bits are the same in those two values. Try to write this down on a paper, and try all kind of different addresses to see what will be permitted, and what will be denied. The access-list answer to this will be: ip access-list 1 deny A.B.235.224 0.0.0.15 ip access-list 1 permit any which is also what TAC told you. You need to understand this! Hth, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: Farhan Ahmed [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 2:44 AM To: 'Ole Drews Jensen' Cc: '[EMAIL PROTECTED]' Subject: RE: access list.. [7:13564] 2nd one permit or deny? also http://www.boson.com/promo/guides/ip-access-list.htm here what tac says IP Extended Access Lists Question: I tried to compile an access list which will only allow a certain IP range access to the proxy server in a subnet. What wild card can I use to accomplish this task? IP info: subnet (class b) A.B.235.0 with subnet mask 255.255.255.0. The proxy server''s address is A.B.119.100. The address range I want to block the access to the proxy is A.B.235.224 to A.B.235.239. I know 255.255.255.230 will give me the address range, but just couldn''t figure out the wild card for that. Answer: 255.255.255.240 will give you the address range for that. To turn this into an access list mask, just invert the bits in the normal subnet mask. For example, 255.255.255.240 = ... In the access list mask, this will be: .... So, the equivalent access list mask in decimal format will be: 0.0.0.15. Within your access list, to cover this range, you will deny: A.B.235.224 0.0.0.15 Last Modified: 12-JUN-98 All contents copyright ) 1992--2001 Cisco Systems, Inc. Important Notices and Privacy Statement. -Original Message- From: Ole Drews Jensen [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 11:44 PM To: [EMAIL PROTECTED] Subject: RE: access list.. [7:13564] I am not sure why this discussion is starting all over a day or two after it was done, but anyway - your answer is incorrect. Please see the explanation below (again). Let's take it line by line: ip access-list 1 deny 128.252.240.0 0.0.0.255 Third Octet: Address 240 Wildcard0 Since all bits in the wildcard are 0, they must all match with the address, so only one address will be included here = 240. ip access-list 1 permit 128.252.240.0 0.0.15.255 Third Octet: Address 240 Wildcard15 Here the first four bits in the wildcard are 0, so they must match. The last four bits are 1, so they don't care. So, you will have from thru or 240 to 255. ip access-list 1 deny 128.252.0.0 0.0.255.255 Third Octet: Address 0 Wildcard255 None of the wildcard bits are 0, so this
Re: OT Mailing Lists [7:13866]
For MCSE 2K news.microsoft.com|miscrosoft.public.cert.exam.mcse For RHCE alt.certification.redhat Dale Frohman wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Group, This is a bit off topic. But i was wondering if anyone could recommend any mailing lists that help candidates attempting the RHCE and MCSE 2k. Any information will be appreciated. Thanks Dale Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13869t=13866 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: question on ipunumbered [7:13846]
IP unnumbered is a technique used to conserve IP address space. I believe it is discussed in RFC 1812 in terms of a possible mechanism that would permit IP unnumbered. I.e. router RID's can serve as a means of identifying the devices on either end of serial links and point-to-point subinterfaces of frame links. Seeing as OSPF and EIGRP and RIPv2 all work properly over unnumbered links, I would venture a guess that it makes no difference to the routing protocol. the links themselves will not appear in any routing tables, whereas if they were numbered they would. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of suleman ibrahim aboo Sent: Thursday, July 26, 2001 1:55 AM To: [EMAIL PROTECTED] Subject: question on ipunumbered [7:13846] Why when using unnumbered interfaces, any routing protocol running across the serial line must not advertise subnet information ? Thanks in advance _ For Rs. 2,000,000 worth of Aptech scholarships click below http://events.rediff.com/aptechsch/scholarship.htm Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13870t=13846 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Catalyst 6509 vs BlackDiamond [7:13837]
I've heard similar in the past. However, keep in mind that very few enterprise networks will ever generate traffic at that level. I've never seen any network even turn on the utilization lights on the C6k or C5k for that matter. Too often people weight sheer throughput higher than other enterprise sensitive items including vendor support/protocol support/compatibility/stability etc. Pete *** REPLY SEPARATOR *** On 7/26/2001 at 3:38 AM mishaal wrote: How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13871t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
A PING - Connectivity Issue [7:13873]
Guys, I was putting a lab together and noticed something wierd. I configured my Sparc (Unix) station's Le0 interface with an IP address, brought it up and decided to play around with it a little. I noticed that I could ping the IP that I configured on the interface although it was disconnected from/plugged OUT of the hub. I asked one of the Unix guys at my job if this was strange and he said NO! He could not tell me why but only said that it will always be able to ping the IP address configured on the box despite the fact that it is not connected to a Hub. What I need to know guys is WHY. I am not just satisfied with the fact that it is suppose happen unless I can know WHY it happen. Any takers here? Thanks dude. Ray _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13873t=13873 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN routing [7:13465]
Good points. I should certainly clarify that I don't advocate bridging between VLANs unless it makes sense to do so which is usually a corner case. I also fully support properly scoping broadcast domains and using a one vlan to one subnet methodology for cleanliness. I love simple networks. I just wanted to hammer on the distinction a little bit. Hopefully the tooth fairy got laid off during the tech slowdown and we can go back to basic bridging and routing. Pete *** REPLY SEPARATOR *** On 7/26/2001 at 9:58 AM Howard C. Berkowitz wrote: Ok, one more round of nit picky comments and I'll quit :) Do I need a router between my VLANs? If you want the VLANs to communicate with each other. Are these trick questions? ;-) I realize there are cases where you don't want them to communicate. I guess that is what you are getting at. If you want VLANs to share the same broadcast domain, you bridge them. Which can be dangerous from a scaling standpoint, unless all the bridged parts are under common administration. One of the reasons to have reasonable size broadcast domains is to limit broadcast loads on hosts; it is NOT a bandwidth problem. It is a broadcast problem whether the network is IP, IPX, NetBEUI, etc. I find a lot of optical people getting confused and recommending layer 2 VPNs because they think that interconnecting (i.e., bridging) will magically work because they use full OC-192 lambdas between them. That has nothing to do with the core problem. Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. Do I need an IP address on my VLANs? Some sort of network-layer addressing is required for end stations to communicate using typical applications. There are some cases where network-layer addressing is not used, of course, but that sort of communication is being phased out. Again, if you want to route layer three protocols, you use a router. In multiprotocol networks, such as those tested on the CCIE exam, it is often necessary to support a mix of protocols, some of which need to be routed across broadcast domains while others are bridged. Understanding this is much easier when you don't believe in the tooth fairy. Ah, but if you have the tooth fairy as the administrator of an L3 switch... Mind you, I consider L3 switches and tooth fairies about the same. If it makes L3 decisions, it's a router. It may be a router with hardware distributed forwarding, or it may be a router with a single processor for control and forwarding. It's still a router. Can I route between VLAN 1 and VLAN 2 with just a switch? No, not a Layer 2 switch. Bad question :) You can certainly bridge two VLANs, essentially creating one. I should have said connect vs route. The point is to illustrate the difference between layer two broadcast domains and routing, thus reinforcing the point that if you want to route, you use a router. There are no exceptions to this rule. And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and errors with subnet mask configurations, etc., but let's consider the typical case. This is my point. To route, you need a router. VLANs haven't changed this whatsoever. I simply find that too many people misunderstand the VLAN concept simply because vendor marketing has confused the issue and numerous pieces of literature make the layer 3 to VLAN binding without properly developing the difference. Nit picky I know, but its a pet peeve. Pete I personally regard VLANs, first and foremost, as a means of multiplexing a LAN. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13872t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT Mailing Lists [7:13866]
Saluki.com they have an MCSE mailing list... VERY active.. - Original Message - From: Dale Frohman To: Sent: Thursday, July 26, 2001 8:56 AM Subject: OT Mailing Lists [7:13866] Group, This is a bit off topic. But i was wondering if anyone could recommend any mailing lists that help candidates attempting the RHCE and MCSE 2k. Any information will be appreciated. Thanks Dale Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13874t=13866 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13875]
Thanks, it doesn't matter whether I use frame relay map and interface dlci, still can't ping. Router A int s0 encap frame-relay frame-relay lmi-type ansi int s0.1 multipoint ip add 172.16.1.1 255.255.255.248 frame-relay map ip 172.16.1.2 200 broadcast frame-relay map ip 172.16.1.3 300 broadcast int s0.2 point-to-point frame-relay interface-dlci 100 ip add 172.16.2.1 255.255.255.252 so from router A, locally, I can ping to ALL interfaces connected EXCEPT to local interface 172.16.1.1 ONLY (for 172.16.2.1 is OK) grad From: dragi radovanovic Reply-To: dragi radovanovic To: [EMAIL PROTECTED] Subject: RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13862] Date: Thu, 26 Jul 2001 09:38:09 -0400 Hi! Maybe you should add a map for it? Dragi _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13875t=13875 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Problems with AIM compression on 3660/2600 [7:13742]
Check out bug id# CSCdm69595 There are several others but they don't show up on CCO (Cisco keeps some bugs private) Essentially hw compression mungs up multicast data on 2600/3600 serial interfaces. They say it was fixed in latter releases of 12.07 so you may want to try one of the 12.1 images... A few other multicast issues I've learned the hard way... Early versions of the 2621 router will not pass multicast traffic through the on board ethernet interfaces (Bug ID CSCdm38511 ) Only fix is a router swap. My office looked like a warehouse for a while we were shipping so many 2621s back to Cisco Multicast fast switching (ip mroute-cache) doesn not yet work with hardware compression (Bug ID CSCdt82560) This has not been fixed as of 12.2x. So if you are tring to save CPU by hardware compressing the multicast data you lose CPU by not being able to fast switch. I recall at least one 30 hour marathon with TAC hopping from various TAC centers worldwide. As far as I recall the 2621 hardware issue was already known at Cisco but the problem with hardware compression (both the munging of data and the fast switching issue) were only discovered when a customer (unfortunately me) tried to do it. Bob -Original Message- From: Simon Watson [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 2:20 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: Problems with AIM compression on 3660/2600 [7:13742] Hi Bob The IOS version on all the routers are 12.0(7)XK1 Simon From: Bob Johnson Reply-To: Bob Johnson To: [EMAIL PROTECTED] Subject: RE: Problems with AIM compression on 3660/2600 [7:13742] Date: Wed, 25 Jul 2001 13:36:30 -0400 In my previous reply I'm refering to the (as far as I know..) the OSPF multicast messages being mucked up... Bob (still trying to find the bug ID) -Original Message- From: Bob Johnson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 10:01 AM To: [EMAIL PROTECTED] Subject: RE: Problems with AIM compression on 3660/2600 [7:13742] Most likely the hardware compression is mucking up the multicast traffic... I've had many many issues with hardware compression and multicast (got to know TAC people all across the world).. I'll try to dig up the bug ID. What image are you using? Bob -Original Message- From: Simon Watson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 5:25 AM To: [EMAIL PROTECTED] Subject: Problems with AIM compression on 3660/2600 [7:13742] Hi Guys I have just installed a 3660 and 7 2600's (the 2600's connected to the 3660with 256k WAN links via 2 quad serial cards on 3660). ospf configured(all routers on area 0), I have just changed the compression from software to hardware to ultilize the AIM modules installed in both the 3660 2600's( I set up PPP Encapsulation from HDLC on all routers, and configured compress stac caim 0 on 2600's compress stac caim 0-3 on 3660) However as soon I made the change I was receiving the OSPF error message: SPF-4-ERRRCV: Received invalid packet: Bad Checksum from 10.100.6.1, Serial0/0 Jul 25 03:27:15: %OSPF-4-ERRRCV: Received invalid packet: Bad Checksum from 10.100.6.1, Serial0/0 Jul 25 03:27:21: %OSPF-4-ERRRCV: Received invalid packet: Bad Checksum from 10.100.6.1, Serial0/0 This was happening on all the 2600's, OSPF routes were being lost, on when I reverted to software compression the problem subsided. Has anyone seen this problem before.Pls let me know Rgrds Simon. -- -- Get your FREE download of MSN Explorer at http://explorer.msn.com [EMAIL PROTECTED] _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13876t=13742 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: QUERY ON FRAME RELAY, Can't ping to it's own interface [7:13877]
I am not having any problem pinging my subinterface addresses locally. You may want to shut down the interface and bring it back up and see if this alleviates your problem. Raul - Original Message - From: Grad Alfons Kanon To: Sent: Thursday, July 26, 2001 9:24 AM Subject: QUERY ON FRAME RELAY, Can't ping to it's own interface [7:13862] Hello, Can anybody explain why we I can't ping to local multipoint sub interface..? int s0 encapsulation frame relay frame-relay lmi-type ansi int 0.1 multipoint ip add 172.16.1.1 255.255.255.248 frame-relay interface-dlci 200 frame-relay interface-dlci 300 i can't ping to 172.16.1.1 locally, tx Grad _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13877t=13877 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 640-509 [7:13815]
Thanks a lot! I'm not asking for copyright info like questions etc, i'm just asking for exam features. Well it's ok if like you say it's copyright info. I just don't like going blind into an exam. Thanks anyway. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13878t=13815 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Catalyst 6509 vs BlackDiamond [7:13837]
the full url, so you don't have to rack your brains searching for the report: http://www.zdnet.com/etestinglabs/reports/extcisco.pdf looks like they did not use the switch fabric module 256 gig option for the catalyst. but with regards to the results - hey, if a device is receiving far more input than it's fabric and its buffers can handle, what do you expect? something has to give someplace. sounds like the Cat is performing as advertised. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of mishaal Sent: Thursday, July 26, 2001 12:38 AM To: [EMAIL PROTECTED] Subject: Catalyst 6509 vs BlackDiamond [7:13837] How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13879t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP Bandwidth [7:13817]
This is entirely up to you since you'll be doing the configuration. If you choose to configure the ATT link as backup only, then you'll only have 3MB available. Do you already have at least a full /24 prefix assigned to you? Do you have your own ASN? If so, then if you have a hefty enough router, accept customer-only routes from all three links and let the router choose the best link. Since you'll have two links to Qwest, this will require more thought since the AS Path will be the same. You'll have to consider using other attributes to make your routing decisions. If you really have a beefy router you could accept full routes from all three locations. Again, having two links to Qwest makes intelligent routing more difficult. In this situation, here's how I would do it: 1. Accept customer only routes from ATT 2. Accept at least the default from the two Qwest links, possibly customer-only routes 3. Let the router make the best decision between either an ATT exit or a Qwest exit. 4. For prefixes that are closer through Qwest, do per-destination load-sharing on the Qwest links. To make this simpler, basically if your router learns a route from the ATT link it will always use that link for that prefix. If it doesn't have an explicit route then load-share over the Qwest links. But, that's how I would do it. You should get some other opinions and then compare them with your goals to figure out what's best for you. HTH, John Jeongwoo Park 7/25/01 5:24:42 PM Hi all I am trying to implement BGP. I used to have 2T1 lines going straight to Qwest (isp). Now I want to install another T1 line going to ATT (isp) as a back-up line. Now my question is what bandwidth will I have? Will I have 4.5M bandwidth (2xT1 + T1) together? or Will I have only 3M bandwidth (2xT1) from Qwest because T1 going to ATT is used as a back-up? It would be better if I could use extra T1 not only as a back up but also as an additional bandwidth. Your input will be appreciated. JP Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13881t=13817 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Test [7:13880]
_ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13880t=13880 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Async comes up but encapsulation fails [7:13834]
use autoselect ppp where is the dialer info?? Best Regards Have A Good Day!! Farhan Ahmed MCSE+I, MCP Win2k, CCDA, CCNA, CSE, CCNA Network Engineer Mideast Data Systems Abudhabi Uae. Privileged/Confidential Information may be contained in this message or Attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, Conclusions and other information in this message that do not relate to the Official business of this company shall be understood as neither given nor Endorsed by it. -Original Message- From: Ahmed Mamoor Amimi [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 5:32 PM To: [EMAIL PROTECTED] Subject: Re: Async comes up but encapsulation fails [7:13834] Both the routers get connected but can't ping both side and says encapsualtion failed the config on both side for async port is interface Async1 ip address 192.168.4.2 255.255.255.0 no ip directed-broadcast encapsulation ppp keepalive 10 dialer in-band dialer wait-for-carrier-time 5 dialer map ip 192.168.4.1 35 dialer-group 1 async default routing async mode dedicated ! router rip network 192.168.4.0 network 192.168.5.0 ! line aux 0 login local modem InOut modem autoconfigure type usr_sportster transport input all stopbits 1 speed 38400 flowcontrol hardware = help me!! Bruce McNamara wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Have you verified the the encapsulation type on either side? We use CHAP as it is professed to be more secure using the chanllenge-response method. [GroupStudy.com removed an attachment of type application/octet-stream which had a name of Farhan Ahmed.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13883t=13834 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP prefix compiling [7:13828]
I'm going to take a shot at this. Before I continue I'll share something that wasn't obvious to me when I first looked at prefix lists and wasn't mentioned in the IRA book. It was mentioned elsewhere--CertificationZone, I think--and this helped me out a lot. This is embarrassing to admit, but I didn't notice that ge and le stood for greater than or equal to and less than or equal to. I was used to seeing = and it just didn't occur to me. From previous programming experience a long time ago I should have noticed this, but I had a brain cloud. Anyway, this makes this much easier to remember how this works. Let's use your last example: Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 This will match any prefix that begins with 172.16 and has a mask greater than or equal to 255.0.0.0. Let's modify your example a bit: ip prefix-list elvira permit 172.16.0.0/16 le 24 This will match any prefix that begins with 172.16 and has a mask between 255.255.0.0 and 255.255.255.0, or anything between a /16 and /24 inclusive. Let's say you wanted to deny prefixes longer than /24: ip prefix-list elvira deny 172.16.0.0/16 ge 25 This will match any prefix that begins with 172.16 but has a mask of /25 or longer. Does that make sense? I hope I have that right! ;-) Regards, John Ole Drews Jensen 7/25/01 8:33:13 PM This is to (hopefully) confirm that my understanding of the examples in the BSCN book and the IRA 2nd. ed. book are correct. If the formel looks like this: ip prefix-list elvis permit a.b.c.d/n It will be compiled like this: 1)if neither ge nor le are added, only the excact prefix (n) is allowed. 2)if only ge x is added, n is ignored and an invinsible le of 32 are added so prefix x thru 32 are permitted. 3)if only le y is added, prefix n thru y are permitted. 4)if both ge x and le y are added, n is ignored and prefix x thru y are permitted. This is to all you BGP experts out there - please comment with true or false on the 4 statements above, and add any comments or corrections if necessary. One last question, can the ge value be lower than the /n value? Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 and would that allow only the prefix 172.16.0.0/8 ? I thank you in advance, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.RouterChief.com NEED A JOB ??? http://www.oledrews.com/job Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13882t=13828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Calculating Collision % [7:13824]
The single collision count indicates the number of frames that were transmitted after a single collision. The multiple collision count indicates the number of frames that were transmitted after multiple collisions. The late collision count indicates the number of frames that experienced a collision after 512 bits had been sent. The excessive collisions count indicates the number of frames that were not transmitted because 16 collisions occurred. If excessive collisions are happening, I wouldn't worry to much about formulae and statistics. I'd get out there and troubleshoot the problem. They shouldn't occur. Could you have a duplex mismatch? Late collisions shouldn't happen either. They could mean a duplex mismatch also. The percent of frames that encountered a collision when transmitted versus all frames transmitted is: Single + multiple + late + excessive/ all frames transmitted x 100. See more pithy comments below... At 09:38 PM 7/25/01, Mike Fears wrote: Group, What is the best way to calculate collision % on a 10BaseT ethernet port on a Catalyst 5000/5500? Now, I have my own formula, and it is what I came up with after looking at CCO for the way a Catalyst 5000 counts collisions. According to Cisco, it appears that: a single collision is only 1 collision (does this include the multi and excessive collisions?) A frame fits into only one category. It either experienced 1 collision, multiple (2-15), a late one, or 16 and wasn't transmitted. a multiple collision is when the same transmitted frame encounters more than one collision (So, if a frame encounters 2 or more (Or is it 2-15?)collisions it will increment the counter up by 1. If it encounters more than one collision it goes in the multiple category, but it doesn't go into the category more than once. and excessive collisions are collisions of more than 16 in a row with the same tx frame. Same as what? Excessive collisions mean there were 16 tries and then the sender gave up. So, is it as simple as using the total tx frames (uni,multi,broadcasts) / single collisions x100? That would be backwards for a percent of collisions compared to good frames transmitted, wouldn't it?? Or do you have to do something like what I came up with, which is single collisions + (multi collisions X 3) + excessive collisions X 16) + Late Collisions / Total tx frames X 100 Multiple collisions are somewhere from 2-15 and 3 was chosen as a guess on ports with no excessive collisions. If you're looking for a reasonably exact formula, you shouldn't throw guesses in there?? ;-) You don't need the 3. You don't need the 16 either. Most of the ports (about 200) that encountered multiple collisions did not detect any excessive collisions. Only about 30 saw both. On those, I chose 5. The good news is that I have Once again, I don't know about this choosing of numbers to throw into the formula. No ports should see excessive collisions. Excessive collisions are abnormal. I would look into those if I were you. This information is what I have gathered from reading and testing. I'm 99% sure of its accuracy. ;-) Seriously, for questions like this, you would have to look at the source code to be 100% sure. And, of course, there could be differences with hardware and software versions. TAC also does a good job describing how things work. See if there's a TAC page on this topic. HTH Priscilla mostly full-duplex ports, so I don't have to worry about those. Thanks, Phyrz CCNP __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13886t=13824 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP prefix compiling [7:13828]
Yes that does make sense - THANKS - and I wonder why none of the books I have read about this mention this small but very important fact, that ge stands for = and le for = and it just didn't occur to me. From previous programming experience a long time ago I should have noticed this, but I had a brain cloud. Anyway, this makes this much easier to remember how this works. Let's use your last example: Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 This will match any prefix that begins with 172.16 and has a mask greater than or equal to 255.0.0.0. Let's modify your example a bit: ip prefix-list elvira permit 172.16.0.0/16 le 24 This will match any prefix that begins with 172.16 and has a mask between 255.255.0.0 and 255.255.255.0, or anything between a /16 and /24 inclusive. Let's say you wanted to deny prefixes longer than /24: ip prefix-list elvira deny 172.16.0.0/16 ge 25 This will match any prefix that begins with 172.16 but has a mask of /25 or longer. Does that make sense? I hope I have that right! ;-) Regards, John Ole Drews Jensen 7/25/01 8:33:13 PM This is to (hopefully) confirm that my understanding of the examples in the BSCN book and the IRA 2nd. ed. book are correct. If the formel looks like this: ip prefix-list elvis permit a.b.c.d/n It will be compiled like this: 1)if neither ge nor le are added, only the excact prefix (n) is allowed. 2)if only ge x is added, n is ignored and an invinsible le of 32 are added so prefix x thru 32 are permitted. 3)if only le y is added, prefix n thru y are permitted. 4)if both ge x and le y are added, n is ignored and prefix x thru y are permitted. This is to all you BGP experts out there - please comment with true or false on the 4 statements above, and add any comments or corrections if necessary. One last question, can the ge value be lower than the /n value? Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 and would that allow only the prefix 172.16.0.0/8 ? I thank you in advance, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.RouterChief.com NEED A JOB ??? http://www.oledrews.com/job Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13884t=13828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: classless routing [7:13847]
At 04:56 AM 7/26/01, suleman ibrahim aboo wrote: Can you please explain what would happen and why. A router has ip classless enabled. It's routing table has entries for 10.5.0.0/16 and 10.6.0.0/16 and a default route 0.0.0.0. A packet arrives for a destination on 10.7.0.0/16. Which route does it take ? It would be dropped. The router doesn't have a route for 10.7.0.0. Is there a default route? It could use that. I have a feeling you meant to make the question harder?? Or I'm missing something. Priscilla thanks in advance _ For Rs. 2,000,000 worth of Aptech scholarships click below http://events.rediff.com/aptechsch/scholarship.htm Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13885t=13847 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP prefix compiling [7:13828]
I don't see why that wouldn't work. As I mentioned previously, it will match all prefixes that begin with exactly 172.16 but have a mask of /8 or greater. There are other ways to accomplish the same thing that make more sense, but at the moment this logic seems valid. Although, I suppose it doesn't really make any sense to write it like that since it accomplishes the same thing as ip prefix-list elvira permit 172.16.0.0/16 le 32 This would match the same prefixes and makes much more sense. Okay, I just tried it and I received an error that says: % Invalid prefix range for 172.16.0.0/16, make sure: len John Ole Drews Jensen 7/26/01 9:44:20 AM Yes that does make sense - THANKS - and I wonder why none of the books I have read about this mention this small but very important fact, that ge stands for = and le for = and it just didn't occur to me. From previous programming experience a long time ago I should have noticed this, but I had a brain cloud. Anyway, this makes this much easier to remember how this works. Let's use your last example: Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 This will match any prefix that begins with 172.16 and has a mask greater than or equal to 255.0.0.0. Let's modify your example a bit: ip prefix-list elvira permit 172.16.0.0/16 le 24 This will match any prefix that begins with 172.16 and has a mask between 255.255.0.0 and 255.255.255.0, or anything between a /16 and /24 inclusive. Let's say you wanted to deny prefixes longer than /24: ip prefix-list elvira deny 172.16.0.0/16 ge 25 This will match any prefix that begins with 172.16 but has a mask of /25 or longer. Does that make sense? I hope I have that right! ;-) Regards, John Ole Drews Jensen 7/25/01 8:33:13 PM This is to (hopefully) confirm that my understanding of the examples in the BSCN book and the IRA 2nd. ed. book are correct. If the formel looks like this: ip prefix-list elvis permit a.b.c.d/n It will be compiled like this: 1)if neither ge nor le are added, only the excact prefix (n) is allowed. 2)if only ge x is added, n is ignored and an invinsible le of 32 are added so prefix x thru 32 are permitted. 3)if only le y is added, prefix n thru y are permitted. 4)if both ge x and le y are added, n is ignored and prefix x thru y are permitted. This is to all you BGP experts out there - please comment with true or false on the 4 statements above, and add any comments or corrections if necessary. One last question, can the ge value be lower than the /n value? Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 and would that allow only the prefix 172.16.0.0/8 ? I thank you in advance, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.RouterChief.com NEED A JOB ??? http://www.oledrews.com/job Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13887t=13828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP prefix compiling [7:13828]
Okay, now you're confusing me John. If we take ip prefix-list elvira permit 172.16.0.0/16 le 32 wouldn't that permit /16 thru /32, whereas ip prefix-list elvire permit 172.16.0.0/16 ge 8 would permit /8 thru /32? But, I guess the error message you included was for the /16 ge 8, which kind of ends this discussion :-) Thanks, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 11:17 AM To: [EMAIL PROTECTED] Subject: RE: BGP prefix compiling [7:13828] I don't see why that wouldn't work. As I mentioned previously, it will match all prefixes that begin with exactly 172.16 but have a mask of /8 or greater. There are other ways to accomplish the same thing that make more sense, but at the moment this logic seems valid. Although, I suppose it doesn't really make any sense to write it like that since it accomplishes the same thing as ip prefix-list elvira permit 172.16.0.0/16 le 32 This would match the same prefixes and makes much more sense. Okay, I just tried it and I received an error that says: % Invalid prefix range for 172.16.0.0/16, make sure: len John Ole Drews Jensen 7/26/01 9:44:20 AM Yes that does make sense - THANKS - and I wonder why none of the books I have read about this mention this small but very important fact, that ge stands for = and le for = and it just didn't occur to me. From previous programming experience a long time ago I should have noticed this, but I had a brain cloud. Anyway, this makes this much easier to remember how this works. Let's use your last example: Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 This will match any prefix that begins with 172.16 and has a mask greater than or equal to 255.0.0.0. Let's modify your example a bit: ip prefix-list elvira permit 172.16.0.0/16 le 24 This will match any prefix that begins with 172.16 and has a mask between 255.255.0.0 and 255.255.255.0, or anything between a /16 and /24 inclusive. Let's say you wanted to deny prefixes longer than /24: ip prefix-list elvira deny 172.16.0.0/16 ge 25 This will match any prefix that begins with 172.16 but has a mask of /25 or longer. Does that make sense? I hope I have that right! ;-) Regards, John Ole Drews Jensen 7/25/01 8:33:13 PM This is to (hopefully) confirm that my understanding of the examples in the BSCN book and the IRA 2nd. ed. book are correct. If the formel looks like this: ip prefix-list elvis permit a.b.c.d/n It will be compiled like this: 1)if neither ge nor le are added, only the excact prefix (n) is allowed. 2)if only ge x is added, n is ignored and an invinsible le of 32 are added so prefix x thru 32 are permitted. 3)if only le y is added, prefix n thru y are permitted. 4)if both ge x and le y are added, n is ignored and prefix x thru y are permitted. This is to all you BGP experts out there - please comment with true or false on the 4 statements above, and add any comments or corrections if necessary. One last question, can the ge value be lower than the /n value? Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 and would that allow only the prefix 172.16.0.0/8 ? I thank you in advance, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.RouterChief.com NEED A JOB ??? http://www.oledrews.com/job Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13888t=13828 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Seattle Study Group, Cisco User Group [7:13889]
The Cisco office in Bellevue, WA will be hosting their first Seattle Cisco User Group meeting on Wednesday, August 15, 2001 in their building location, 500 108th Avenue NE. Part of the agenda for that meeting will be dedicated to discussion on the formation of Study groups in the area for those looking to pass the Cisco certification exams. For specific details regarding starting time, parking and agenda, please sign up as a member of the SCUG on the following website: http://clubs.yahoo.com/clubs/seattleciscousersgroup We look forward to meeting you. - The Seattle Cisco User Group Founders __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13889t=13889 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Catalyst 6509 vs BlackDiamond [7:13837]
The major thing here is that the BD is FAR cheaper and out performs regardless of options etc.etc.etc... We just left Extreme for Cisco only because of Politics I as an engineer love extreme and think they have far superior products! Without knowing anything about extremware, I configured a BD in 10 minutes. This config even knowing cisco's products took me 30 minutes just because of simple mistakes one might make just because you forgot to switch interfaces or you just switched to the wrong one by accident. Their command line interface is just as sweet as it gets. I have never seen better. Of course we all are creature of habit and for the most part are goign to suggest what we know as what we should buy. If there is ever a chance you get to play with one of these monsters, do it! You'll see what I mean! -Patrick Chuck Larrieu 07/26/01 11:36AM the full url, so you don't have to rack your brains searching for the report: http://www.zdnet.com/etestinglabs/reports/extcisco.pdf looks like they did not use the switch fabric module 256 gig option for the catalyst. but with regards to the results - hey, if a device is receiving far more input than it's fabric and its buffers can handle, what do you expect? something has to give someplace. sounds like the Cat is performing as advertised. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of mishaal Sent: Thursday, July 26, 2001 12:38 AM To: [EMAIL PROTECTED] Subject: Catalyst 6509 vs BlackDiamond [7:13837] How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13890t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP prefix compiling [7:13828]
Exactly! ;-) Since a prefix must start with at least 172.16.0.0/16, it doesn't make sense to use ge 8. The mask must be at least /16 to match 172.16.0.0/16, hence the error. As you can see from the error, the ge value must be greater than the mask you specify in the first portion of the statement. In this case, any ge value must be greater than 16. Hmm...I just looked at my post and it appears that the error message was truncated somehow. It went on to say that len must be less than the ge-value, which must be less than or equal to the le-value. I won't paste in the exact error since it will probably be truncated again. Given that prerequisite, you'd have to restate your example like this: ip prefix-list elvira permit 172.16.0.0/8 ge 9 However, I just tried this and it was changed to: ip prefix-list elvira permit 172.0.0.0/8 ge 9 I suppose the logic of this is becoming quite strained, since it's not apparent what we're trying to accomplish.If the goal is to permit 172.16.0.0 and any subnet but *not* allow any other 172.0.0.0/8, then we could do this: ip prefix-list elvira permit 172.16.0.0/16 le 32 ip prefix-list elvira deny 172.0.0.0/8 le 32 It always helps to know what we're trying to do before we try to do it. :-) Regards, John Ole Drews Jensen 7/26/01 10:29:32 AM Okay, now you're confusing me John. If we take ip prefix-list elvira permit 172.16.0.0/16 le 32 wouldn't that permit /16 thru /32, whereas ip prefix-list elvire permit 172.16.0.0/16 ge 8 would permit /8 thru /32? But, I guess the error message you included was for the /16 ge 8, which kind of ends this discussion :-) Thanks, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 11:17 AM To: [EMAIL PROTECTED] Subject: RE: BGP prefix compiling [7:13828] I don't see why that wouldn't work. As I mentioned previously, it will match all prefixes that begin with exactly 172.16 but have a mask of /8 or greater. There are other ways to accomplish the same thing that make more sense, but at the moment this logic seems valid. Although, I suppose it doesn't really make any sense to write it like that since it accomplishes the same thing as ip prefix-list elvira permit 172.16.0.0/16 le 32 This would match the same prefixes and makes much more sense. Okay, I just tried it and I received an error that says: % Invalid prefix range for 172.16.0.0/16, make sure: len John Ole Drews Jensen 7/26/01 9:44:20 AM Yes that does make sense - THANKS - and I wonder why none of the books I have read about this mention this small but very important fact, that ge stands for = and le for = and it just didn't occur to me. From previous programming experience a long time ago I should have noticed this, but I had a brain cloud. Anyway, this makes this much easier to remember how this works. Let's use your last example: Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 This will match any prefix that begins with 172.16 and has a mask greater than or equal to 255.0.0.0. Let's modify your example a bit: ip prefix-list elvira permit 172.16.0.0/16 le 24 This will match any prefix that begins with 172.16 and has a mask between 255.255.0.0 and 255.255.255.0, or anything between a /16 and /24 inclusive. Let's say you wanted to deny prefixes longer than /24: ip prefix-list elvira deny 172.16.0.0/16 ge 25 This will match any prefix that begins with 172.16 but has a mask of /25 or longer. Does that make sense? I hope I have that right! ;-) Regards, John Ole Drews Jensen 7/25/01 8:33:13 PM This is to (hopefully) confirm that my understanding of the examples in the BSCN book and the IRA 2nd. ed. book are correct. If the formel looks like this: ip prefix-list elvis permit a.b.c.d/n It will be compiled like this: 1)if neither ge nor le are added, only the excact prefix (n) is allowed. 2)if only ge x is added, n is ignored and an invinsible le of 32 are added so prefix x thru 32 are permitted. 3)if only le y is added, prefix n thru y are permitted. 4)if both ge x and le y are added, n is ignored and prefix x thru y are permitted. This is to all you BGP experts out there - please comment with true or false on the 4 statements above, and add any comments or corrections if necessary. One last question, can the ge value be lower than the /n value? Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 and would that allow only the prefix 172.16.0.0/8 ? I thank you in advance, Ole Ole Drews Jensen Systems Network
RE: BGP prefix compiling [7:13828]
Once again, thanks John, It is small conversations like this one that makes you learn something the books for some reason doesn't mention, or explains badly. Thanks, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 12:03 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: RE: BGP prefix compiling [7:13828] Exactly! ;-) Since a prefix must start with at least 172.16.0.0/16, it doesn't make sense to use ge 8. The mask must be at least /16 to match 172.16.0.0/16, hence the error. As you can see from the error, the ge value must be greater than the mask you specify in the first portion of the statement. In this case, any ge value must be greater than 16. Hmm...I just looked at my post and it appears that the error message was truncated somehow. It went on to say that len must be less than the ge-value, which must be less than or equal to the le-value. I won't paste in the exact error since it will probably be truncated again. Given that prerequisite, you'd have to restate your example like this: ip prefix-list elvira permit 172.16.0.0/8 ge 9 However, I just tried this and it was changed to: ip prefix-list elvira permit 172.0.0.0/8 ge 9 I suppose the logic of this is becoming quite strained, since it's not apparent what we're trying to accomplish.If the goal is to permit 172.16.0.0 and any subnet but *not* allow any other 172.0.0.0/8, then we could do this: ip prefix-list elvira permit 172.16.0.0/16 le 32 ip prefix-list elvira deny 172.0.0.0/8 le 32 It always helps to know what we're trying to do before we try to do it. :-) Regards, John Ole Drews Jensen 7/26/01 10:29:32 AM Okay, now you're confusing me John. If we take ip prefix-list elvira permit 172.16.0.0/16 le 32 wouldn't that permit /16 thru /32, whereas ip prefix-list elvire permit 172.16.0.0/16 ge 8 would permit /8 thru /32? But, I guess the error message you included was for the /16 ge 8, which kind of ends this discussion :-) Thanks, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 11:17 AM To: [EMAIL PROTECTED] Subject: RE: BGP prefix compiling [7:13828] I don't see why that wouldn't work. As I mentioned previously, it will match all prefixes that begin with exactly 172.16 but have a mask of /8 or greater. There are other ways to accomplish the same thing that make more sense, but at the moment this logic seems valid. Although, I suppose it doesn't really make any sense to write it like that since it accomplishes the same thing as ip prefix-list elvira permit 172.16.0.0/16 le 32 This would match the same prefixes and makes much more sense. Okay, I just tried it and I received an error that says: % Invalid prefix range for 172.16.0.0/16, make sure: len John Ole Drews Jensen 7/26/01 9:44:20 AM Yes that does make sense - THANKS - and I wonder why none of the books I have read about this mention this small but very important fact, that ge stands for = and le for = and it just didn't occur to me. From previous programming experience a long time ago I should have noticed this, but I had a brain cloud. Anyway, this makes this much easier to remember how this works. Let's use your last example: Example : ip prefix-list elvira permit 172.16.0.0/16 ge 8 This will match any prefix that begins with 172.16 and has a mask greater than or equal to 255.0.0.0. Let's modify your example a bit: ip prefix-list elvira permit 172.16.0.0/16 le 24 This will match any prefix that begins with 172.16 and has a mask between 255.255.0.0 and 255.255.255.0, or anything between a /16 and /24 inclusive. Let's say you wanted to deny prefixes longer than /24: ip prefix-list elvira deny 172.16.0.0/16 ge 25 This will match any prefix that begins with 172.16 but has a mask of /25 or longer. Does that make sense? I hope I have that right! ;-) Regards, John Ole Drews Jensen 7/25/01 8:33:13 PM This is to (hopefully) confirm that my understanding of the examples in the BSCN book and the IRA 2nd. ed. book are correct. If the formel looks like this: ip prefix-list elvis permit a.b.c.d/n It will be compiled like this: 1)if neither ge nor le are added, only the excact prefix (n) is allowed. 2)if only ge x is
RE: ccna challenge question [7:13565]
I didn't say that RIP can advertise nonclassful subnets. I only said that variable-length subnet masking is not supported by RIP. And it doesn't. What I did say was that (because RIP doesn't advertise a subnet mask), when a router receives a routing update for a network that is not configured on one of the router's interfaces, it applies the classful subnet mask. When a router receives a routing update about a subnet that is part of the same classful network configured on one of the router's interfaces, the router applies the mask as configured on the directly configured interface to the received network route. For example, RouterA has its E0 interface is part of the 37.1.1.32/29 network. When it receives information about network 37.1.1.48 (which does not contain a mask in the routing update), it applies the /29 mask. -- Leigh Anne -Original Message- From: Chuck Larrieu [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 8:06 PM To: Leigh Anne Chisholm; [EMAIL PROTECTED] Subject: RE: ccna challenge question [7:13565] one final belaborment of the point. ( where is Bob Vance, whose thoroughness would be quite welcome here? ) observe the following from a lab setup. all interfaces in the pod are /29 subnets of the 37.0.0.0 network. note the RIP routes that are in the routing table. auto summarization is turned off, but even with it turned on, there is no effect on the routes advertised. other vendors may have different ways of doing it. How is it that RIP, a classful protocol, can advertise non classful subnets? Gateway of last resort is 37.1.1.26 to network 0.0.0.0 C171.171.0.0/16 is directly connected, Loopback0 37.0.0.0/29 is subnetted, 7 subnets R 37.1.1.32 [120/1] via 37.1.1.26, 00:00:10, Serial0 R 37.1.1.40 [120/1] via 37.1.1.26, 00:00:10, Serial0 R 37.1.1.48 [120/2] via 37.1.1.26, 00:00:10, Serial0 R 37.1.1.0 [120/3] via 37.1.1.26, 00:00:10, Serial0 R 37.1.1.8 [120/2] via 37.1.1.26, 00:00:10, Serial0 C 37.1.1.16 is directly connected, Ethernet0 C 37.1.1.24 is directly connected, Serial0 R* 0.0.0.0/0 [120/3] via 37.1.1.26, 00:00:10, Serial0 the answer is that classfulness really has nothing to do with routing protocol behaviour, unless certain circumstances dictate. when everyone agrees on a prefix length, i.e. when all interfaces in the RIP domain have the same mask, all the proper routes are advertised. remember that the RIP packet contains fields for advertised networks. each field is 32 bits in length. there is no subnet mask information. it matters not one iota to RIP what the advertised networks are. 37.0.0.0 fits into the field as does 37.1.1.16 etc. BTW, the directed broadcast addresses of each of the subnets in the table are respectively 37.1.1.7, .15, .23, .31, .39, .47, and .55 classful protocol or not, this is the way it works. sorry to be so obsessive about this, but a thorough understanding of protocol behaviour can be helpful in many circumstances. for example, I have a problem I am working on with a customer that revolves around RIP behaviour. I'm not going to convince them to migrate to OSPF, or even RIPv2 as a fix. I have to live within their existing constraints. My ability to understand how RIP really works allows me to create a design that serves the customer needs. good learning to all Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Leigh Anne Chisholm Sent: Wednesday, July 25, 2001 10:15 AM To: [EMAIL PROTECTED] Subject: RE: ccna challenge question [7:13565] Ed, what you're forgetting is this: a directed broadcast would either be generated by a device 172.18.2.0 network that has been configured with a subnet mask of 255.255.254.0 or by and end-system specifically trying to reach an end-host configured as part of that subnet (for example, a user-initiated ping sent to 172.18.3.255 trying to illicit a response from all end-systems on the 172.18.2.0 /22 subnet). If RouterB does not have an interface directly connected to the 172.18.0.0 network, yes it will see network 172.18.2.0 as 172.18.0.0 and to it it will think the directed broadcast is 172.18.255.255 but why would RouterB need to GENERATE a directed broadcast to this network? RouterB is likely to only RECEIVE a directed broadcast sent to 172.18.3.255 and won't CARE about the IP address of that packet. It takes the packet and forwards it to the 172.18.0.0 network. As a side note, if RouterB DOES have an interface that is part of the 172.18.0.0 network, that interface must be configured with the same subnet mask as the 172.18.2.0 network as variable-length subnet masking is not supported by RIP. In other words, the subnet mask used in conjunction with any subnet from the 172.18.0.0 network must be configured with the subnet mask 255.255.252.0. Then RouterB would know that 172.18.3.255 is the directed broadcast address. Let's look at the question again and look it from a different
Re: VLAN routing [7:13465]
Good points. I should certainly clarify that I don't advocate bridging between VLANs unless it makes sense to do so which is usually a corner case. I also fully support properly scoping broadcast domains and using a one vlan to one subnet methodology for cleanliness. I love simple networks. I just wanted to hammer on the distinction a little bit. Hopefully the tooth fairy got laid off during the tech slowdown and we can go back to basic bridging and routing. Pete Indirectly, you bring out some of the bad habits that Cisco certification engenders. Tony Li (principal BGP architect at Cisco, Juniper, and Procket, and coauthor of the standard) certainly helped me mature as a routing designer when he pointed out that one of the signs he used to recognize a clueful design is the significant extent that APPROPRIATE static routes were present. Yet the lab forbids static routes under most circumstances. Like you, Pete, I like to keep configurations understandable. Yet ACRC (and presumably its successors) used to emphasize weird OSPF network statements that could match the most interfaces with the least network statements. I find this very error-prone, as I do people that try to minimize the number of lines in an access list unless they have a demonstrated performance problem. Returning to the VLAN issue, there's often insufficient attention paid to the alternative of VLAN-aware NICs versus routers versus servers with multiple interfaces. But, with any of the non-routing solutions -- be sure you can figure out a way to ping from your management station. *** REPLY SEPARATOR *** On 7/26/2001 at 9:58 AM Howard C. Berkowitz wrote: Ok, one more round of nit picky comments and I'll quit :) Do I need a router between my VLANs? If you want the VLANs to communicate with each other. Are these trick questions? ;-) I realize there are cases where you don't want them to communicate. I guess that is what you are getting at. If you want VLANs to share the same broadcast domain, you bridge them. Which can be dangerous from a scaling standpoint, unless all the bridged parts are under common administration. One of the reasons to have reasonable size broadcast domains is to limit broadcast loads on hosts; it is NOT a bandwidth problem. It is a broadcast problem whether the network is IP, IPX, NetBEUI, etc. I find a lot of optical people getting confused and recommending layer 2 VPNs because they think that interconnecting (i.e., bridging) will magically work because they use full OC-192 lambdas between them. That has nothing to do with the core problem. Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. Do I need an IP address on my VLANs? Some sort of network-layer addressing is required for end stations to communicate using typical applications. There are some cases where network-layer addressing is not used, of course, but that sort of communication is being phased out. Again, if you want to route layer three protocols, you use a router. In multiprotocol networks, such as those tested on the CCIE exam, it is often necessary to support a mix of protocols, some of which need to be routed across broadcast domains while others are bridged. Understanding this is much easier when you don't believe in the tooth fairy. Ah, but if you have the tooth fairy as the administrator of an L3 switch... Mind you, I consider L3 switches and tooth fairies about the same. If it makes L3 decisions, it's a router. It may be a router with hardware distributed forwarding, or it may be a router with a single processor for control and forwarding. It's still a router. Can I route between VLAN 1 and VLAN 2 with just a switch? No, not a Layer 2 switch. Bad question :) You can certainly bridge two VLANs, essentially creating one. I should have said connect vs route. The point is to illustrate the difference between layer two broadcast domains and routing, thus reinforcing the point that if you want to route, you use a router. There are no exceptions to this rule. And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and
Re: Catalyst 6509 vs BlackDiamond [7:13837]
Hi It's true. It's also true that in similar tests with a Foundry will also out perform a Cat. But keep in mind that a lot of this works out to be FUD. Sales people from each company will have various reasons why you should choose their product over the other. The bottom line is that you have to choose which is right for your company based on it's business and technical needs. Both Extreme and Foundry are making a strong push into Cisco's enterprise switch market share. Their products are very competitive, especially at the price point. If I could get switches with Foundry's architecture, Extreme's network management software and CLI, and Cisco's end to end solutions, I would be a very happy engineer! $0.02 -- John Hardman CCNP MCSE mishaal wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13895t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:1]
Hi ! As far as I know: in general you can't ping your own serial interfaces. Regards. Juan Carlos - Original Message - From: Grad Alfons Kanon To: Sent: Thursday, July 26, 2001 12:16 PM Subject: RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13875] Thanks, it doesn't matter whether I use frame relay map and interface dlci, still can't ping. Router A int s0 encap frame-relay frame-relay lmi-type ansi int s0.1 multipoint ip add 172.16.1.1 255.255.255.248 frame-relay map ip 172.16.1.2 200 broadcast frame-relay map ip 172.16.1.3 300 broadcast int s0.2 point-to-point frame-relay interface-dlci 100 ip add 172.16.2.1 255.255.255.252 so from router A, locally, I can ping to ALL interfaces connected EXCEPT to local interface 172.16.1.1 ONLY (for 172.16.2.1 is OK) grad From: dragi radovanovic Reply-To: dragi radovanovic To: [EMAIL PROTECTED] Subject: RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13862] Date: Thu, 26 Jul 2001 09:38:09 -0400 Hi! Maybe you should add a map for it? Dragi _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=1t=1 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Short Outage [7:13899]
Due to an upgrade gone bad, we had a short outage between 3:00 and 4:00 PM EST. If you sent a message during that time, you may need to resend. Sorry for the inconvenience. Paul Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13899t=13899 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet Tutorial [7:13281]
Maybe I should go back to Mosaic! :) Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy Priscilla Oppenheimer wrote: At 07:53 PM 7/24/01, Tom Lisa wrote: Dave, Gave it a try. Unfortunately it only affects the window bars menus, not the display area within netscape. Netscape!?! That's your problem. Just kidding. ;-) Besides, I think I've convinced the college to give me a 21 monitor.Thanks for trying. Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy David L. Blair wrote: Tom, When I was on a project where the display parameters were tightly regulated, I found that if you goto to the Display Appearance and change the scheme from Windows Standard to Windows (large) or (very large) that made the screen much easier to read for those who have less 20/20 vision. We also tried the items that you and Priscilla suggested, but were overruled by the client. The Appearance was the only display parameter we were allowed to change. Already tried changing the font size, in both IE Netscape. It seems it only changes the font on the section headings, not the text body. Unfortunately, 12pt is beginning to get too small for me. And yes, my 17 monitor is at 800x600. Next stop, tri-focals a 21 monitor. -- Through Complexity there is Simplicity, Through Simplicity there is Complexity David L. Blair - CCNP, CCNA, MCSE, CBE, A+, 3Wizard Priscilla Oppenheimer http://www.priscilla.com [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13898t=13281 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
3Com does not play well with Cisco RIPv2 [7:13900]
We have a Frame Relay network with 3Com and Cisco routers. The core routers are 3Com PathBuilders S500 series. All routers are configured for RIP version 2 (VLSM). All of the 3Com router's RIP routes show up fine in the Pathbuilder's RIP table. The Cisco router's RIP routes show up, then garbage out(show as unreachable), then show up again, then garbage out , etc. Our current work around is to add static routes to the Pathbuilders for all Cisco routers. Does anyone have any info on this issue? Any help is greatly appreciated. Thanks, Robert Provost Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13900t=13900 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Can 2501 handle two T1s [7:13733]
I wasn't that brave. I did it on a 2600 series running OSPF, BGP, NAT ACL'S in a lab environment. Result: CRASH CITY! Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy Chuck Larrieu wrote: for proof of this, issue a debug all command on a production router and watch the fun begin ;- -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 25, 2001 9:02 AM To: [EMAIL PROTECTED] Subject: Re: Can 2501 handle two T1s [7:13733] Hi If you are just routing you should be fine. However if you are doing NAT, ACL, policy based routing or anything else that is CPU consuming you are likely to have some problems. Keep in mind that a Cisco router will start dropping packets at about 70% CPU and be totally brain dead at about 90% CPU. HTH -- John Hardman CCNP MCSE Frank Kim wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hey guys, I know no one in the world would put two T1s on a 2501 router. But I maybe doing this soon. I am currently using a 7200 router for my two T1s but I feel like taking it offline and sell it to pay for my ECP1 and my trip to San Jose for the lab test. So I'm going take out my 2501 and see if it can handle two T1s which is constantly pushing at 2.8-3.0 mbps all the time. Has anyone done this before? Am I going to blow up this router? Will the cpu utilization go skyrocket? Thanks for any advice. -Frank [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13901t=13733 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN routing [7:13465]
Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. What are you guys talking about with this bridging between VLANs? Are you talking about, for example, a Cisco router configured to do bridging? Or are you talking about doing this, for example, on Cisco switches? If you have implemented VLANs how do you bridge between them on a switch? Why don't you just combine them into one VLAN? Sorry, if I'm being dense. I'm just trying to learn. Priscilla Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and errors with subnet mask configurations, etc., but let's consider the typical case. This is my point. To route, you need a router. VLANs haven't changed this whatsoever. I simply find that too many people misunderstand the VLAN concept simply because vendor marketing has confused the issue and numerous pieces of literature make the layer 3 to VLAN binding without properly developing the difference. Nit picky I know, but its a pet peeve. Pete I personally regard VLANs, first and foremost, as a means of multiplexing a LAN. Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13902t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CFR's [7:13903]
Hi Kelly, I need to order 100 construction standards books. I will need them by July 31, 2001. Can you check to see if your company still uses UPS. They have a 3 day delivery service which will reduce my shipping cost. The last order cost me $700. Let me know. Janice Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13903t=13903 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 3Com does not play well with Cisco RIPv2 [7:13900]
Cisco routers default to update every 'so often' where as the 3com routers update when a change has been made...this is why the cisco routers drop all updates after so long because the 3com router is no longer sending them. On the cisco side you can change the update interval to match and all should be well. -Patrick Provost, Robert 07/26/01 04:34PM We have a Frame Relay network with 3Com and Cisco routers. The core routers are 3Com PathBuilders S500 series. All routers are configured for RIP version 2 (VLSM). All of the 3Com router's RIP routes show up fine in the Pathbuilder's RIP table. The Cisco router's RIP routes show up, then garbage out(show as unreachable), then show up again, then garbage out , etc. Our current work around is to add static routes to the Pathbuilders for all Cisco routers. Does anyone have any info on this issue? Any help is greatly appreciated. Thanks, Robert Provost Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13904t=13900 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
wrong study notes at cramsession.com [7:13905]
Dallas2(config-if)#dialer in-band (enables v25bis on sync and chat-scripts on async) Adding Modems to Router - The router has a built-in modem compatibility database (modemcap) to issue the correct initialization strings. Use the following command to have the router search and configure the new modem: Dallas2(config-line)# modemcap autoconfigure discovery You can also use a preset or user defined modem database. http://cramsession.brainbuzz.com/cramsession/cisco/bcran/guide.asp Best Regards Have A Good Day!! *** Farhan Ahmed* MCSE+I, MCP Win2k, CCDA, CCNA, CSE, CCNA Network Engineer Mideast Data Systems Abudhabi Uae. *** Privileged/Confidential Information may be contained in this message or Attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, Conclusions and other information in this message that do not relate to the Official business of this company shall be understood as neither given nor Endorsed by it. [GroupStudy.com removed an attachment of type application/octet-stream which had a name of Farhan Ahmed.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13905t=13905 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VLAN routing [7:13465]
Or Connect your switch to an ATM network, map your vlans to elans then MPOA to router between your elans, that will solve your routing problems. BUT MPOA is a virtual router! You need a router!!! Mark, -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 1:38 PM To: [EMAIL PROTECTED] Subject: Re: VLAN routing [7:13465] Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. What are you guys talking about with this bridging between VLANs? Are you talking about, for example, a Cisco router configured to do bridging? Or are you talking about doing this, for example, on Cisco switches? If you have implemented VLANs how do you bridge between them on a switch? Why don't you just combine them into one VLAN? Sorry, if I'm being dense. I'm just trying to learn. Priscilla Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and errors with subnet mask configurations, etc., but let's consider the typical case. This is my point. To route, you need a router. VLANs haven't changed this whatsoever. I simply find that too many people misunderstand the VLAN concept simply because vendor marketing has confused the issue and numerous pieces of literature make the layer 3 to VLAN binding without properly developing the difference. Nit picky I know, but its a pet peeve. Pete I personally regard VLANs, first and foremost, as a means of multiplexing a LAN. Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13906t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CFR's [7:13903]
Hi Janice, Do you want this order in the US or Great Britain where you message has been directed to. I'm open to offers! Karl - Original Message - From: Wheeler, Janice To: Sent: Thursday, July 26, 2001 9:41 PM Subject: CFR's [7:13903] Hi Kelly, I need to order 100 construction standards books. I will need them by July 31, 2001. Can you check to see if your company still uses UPS. They have a 3 day delivery service which will reduce my shipping cost. The last order cost me $700. Let me know. Janice Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13907t=13903 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN routing [7:13465]
Telling people they need a router between them makes people think that VLANs have some magical layer three capabilities which leads to the above question. Do people ever ask if you need a router between your layer 2 broadcast domains? No. Because it used to be obvious. If you want to route, you need a router. VLANs and the similarly misunderstood Layer 3 switch haven't changed that caveat. And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. What are you guys talking about with this bridging between VLANs? Are you talking about, for example, a Cisco router configured to do bridging? Or are you talking about doing this, for example, on Cisco switches? If you have implemented VLANs how do you bridge between them on a switch? Why don't you just combine them into one VLAN? Sorry, Priscilla, lack of precision. I tend to think of a hierarchical VLAN domain as bridging between, say, the workgroup switches in a building, the building aggregation switch (and handler of building-level servers), and the campus core switch(es). In other words, the VLAN remains one broadcast domain, but has bridges/switches within it, microsegmenting and aggregating. Sorry, if I'm being dense. I'm just trying to learn. Priscilla Can I have multiple subnets on the same VLAN? Yes, but they won't communicate without a router. A station trying to communicate with a station in a different subnet ARPs for its default gateway. Sure there are exceptions with strangely behaving IP stacks and errors with subnet mask configurations, etc., but let's consider the typical case. This is my point. To route, you need a router. VLANs haven't changed this whatsoever. I simply find that too many people misunderstand the VLAN concept simply because vendor marketing has confused the issue and numerous pieces of literature make the layer 3 to VLAN binding without properly developing the difference. Nit picky I know, but its a pet peeve. Pete I personally regard VLANs, first and foremost, as a means of multiplexing a LAN. Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13908t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:1]
The solution I found to the problem is to use point-to-point sub-interfaces instead of configuring the frame settings on the serial interface. I have attached a link that explains it in a little more detail. http://www.cisco.com/cgi-bin/Support/OpenForum/dispnewqa.pl/6058 - Haitao Juan Carlos Cavallero on 2001/07/26 12:13:32 PM Please respond to Juan Carlos Cavallero To: [EMAIL PROTECTED] cc:(bcc: Haitao Huang/ISM-BC) Subject: Re: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:1] Hi ! As far as I know: in general you can't ping your own serial interfaces. Regards. Juan Carlos - Original Message - From: Grad Alfons Kanon To: Sent: Thursday, July 26, 2001 12:16 PM Subject: RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13875] Thanks, it doesn't matter whether I use frame relay map and interface dlci, still can't ping. Router A int s0 encap frame-relay frame-relay lmi-type ansi int s0.1 multipoint ip add 172.16.1.1 255.255.255.248 frame-relay map ip 172.16.1.2 200 broadcast frame-relay map ip 172.16.1.3 300 broadcast int s0.2 point-to-point frame-relay interface-dlci 100 ip add 172.16.2.1 255.255.255.252 so from router A, locally, I can ping to ALL interfaces connected EXCEPT to local interface 172.16.1.1 ONLY (for 172.16.2.1 is OK) grad From: dragi radovanovic Reply-To: dragi radovanovic To: [EMAIL PROTECTED] Subject: RE: QUERY ON FRAME RELAY, Can't ping to it's own inter [7:13862] Date: Thu, 26 Jul 2001 09:38:09 -0400 Hi! Maybe you should add a map for it? Dragi _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13909t=1 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLAN routing [7:13465]
Incline comment And the question often is, what problem are you trying to solve by routing between VLANs? There certainly are reasons, in a campus environment, to bridge between VLANs with a L2 switch, such as the VLAN users in one or more buildings and the servers for that VLAN in a separate central computer room. What are you guys talking about with this bridging between VLANs? Are you talking about, for example, a Cisco router configured to do bridging? Or are you talking about doing this, for example, on Cisco switches? If you have implemented VLANs how do you bridge between them on a switch? Why don't you just combine them into one VLAN? Sorry, if I'm being dense. I'm just trying to learn. Priscilla Really talking about all of the above and non of the above all at once :) I simply wanted to separate as fully as possible the concept of routing and VLANs that the statement VLAN equals subnet implies. The point being that VLANs are layer two broadcast domains and are truly agnostic to what protocols utilize their service. Hence, you can bridge them to grow them if you so desire. However, if you want to route, we are no longer talking VLANs and now are in the realm of routed, routing, and routers. To answer your question, if I have two VLANs on a cisco switch, I can connect them both to a bridge and voila, they are connected (hopefully spanning tree works) I haven't really achieved anything by doing this and likely have done more harm the good, but I have illustrated that VLANs are a layer two weed; fertilized by bridges and contained by routers if you will. I'm reminded of two legacy items with respect to this thread however. Firstly, last I checked, SNA was by far the most dominant protocol configured on devices thanks to POS (that being point of sale vs packet over sonet) and secondly, have we satisfied Hans's need for an answer at this point? :) Pete Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13910t=13465 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Hello All [7:13821]
Hello Mohammed, I personally have: Voice over IP Fundamentals by Cisco Press. This is good for the basics. Some of my customers also showed their appreciation for: Integrating Voice and Data Networks by Scott Keagy Also we are working on putting tips for the customers. Please see: http://www.cisco.com/warp/public/788/ I hope this helps... mustafa From: Mohamed El Komy Reply-To: Mohamed El Komy To: [EMAIL PROTECTED] Subject: Re: Hello All [7:13821] Date: Thu, 26 Jul 2001 03:36:23 -0400 welcome,as we need a voice specialist like you on the list. Can I ask you to recommend for me the best books explaining voice technology (over ip,frame relay and ATM) either from Cisco Press or from others?? Mustafa For CCIE wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Greetings to everybody! I have heard this list from a friend and I believe it will help me to get Routing Switching CCIE as well as my general networking knowledge. Let me introduce myself a little bit: My name is Mustafa Tinmaz. I am working as a TAC engineer for Cisco Systems. I guess I cannot help that nuch regarding data but can provide input for voice questions that you may have as I am supporting VoIP technology in Cisco. happy computing!!! mustafa _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13911t=13821 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 3Com does not play well with Cisco RIPv2 [7:13900]
Cisco routers default to update every 'so often' where as the 3com routers update when a change has been made...this is why the cisco routers drop all updates after so long because the 3com router is no longer sending them. On the cisco side you can change the update interval to match and all should be well. -Patrick I'm not sure I understand what you mean by update every so often. You may be touching on a rather subtle issue in the design of routing protocols, discovered by Sally Floyd. Many RIP (and for that matter IGRP) implementations would reset their update timer when they received new information, so that when the 30 second timer expired, they would send out the most accurate information. Unfortunately, when this behavior extends over a large number, it acts as a weak but real time synchronization mechanism, causing all the 30 second timers to expire at about the same time, causing periodic peak loads. The answer is to put slight randomization into the 30 second or whatever periodic timer is used. Cisco, and most other vendors, do jitter most of their periodic timers. If 3Com stops sending periodic updates simply because there is no change, that is a major violation of conformance to the RIP standard. RIP and IGRP rely on periodic updates to detect router and link failures. Provost, Robert 07/26/01 04:34PM We have a Frame Relay network with 3Com and Cisco routers. The core routers are 3Com PathBuilders S500 series. All routers are configured for RIP version 2 (VLSM). All of the 3Com router's RIP routes show up fine in the Pathbuilder's RIP table. The Cisco router's RIP routes show up, then garbage out(show as unreachable), then show up again, then garbage out , etc. Our current work around is to add static routes to the Pathbuilders for all Cisco routers. Does anyone have any info on this issue? Any help is greatly appreciated. Thanks, Robert Provost Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13912t=13900 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: A PING - Connectivity Issue [7:13873]
because your pinging your own interface Ray Smith wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Guys, I was putting a lab together and noticed something wierd. I configured my Sparc (Unix) station's Le0 interface with an IP address, brought it up and decided to play around with it a little. I noticed that I could ping the IP that I configured on the interface although it was disconnected from/plugged OUT of the hub. I asked one of the Unix guys at my job if this was strange and he said NO! He could not tell me why but only said that it will always be able to ping the IP address configured on the box despite the fact that it is not connected to a Hub. What I need to know guys is WHY. I am not just satisfied with the fact that it is suppose happen unless I can know WHY it happen. Any takers here? Thanks dude. Ray _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13913t=13873 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Dual T1 Bonding? [7:13914]
Hello, We have a Cisco2621 with two T1 going to the same place. Does anyone have a link to some IOS examples that would allow them to be bonded together? \ We would like the ability to download at the combined T1 speed of 3 mb. Currently we seem to max out at only 1 T1 speed. I did searches at Cisco on bonding, but could not come up with anything. Thank you. Matt Goodhue Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13914t=13914 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Dual T1 Bonding? [7:13914]
Hello, We have a Cisco2621 with two T1 going to the same place. Does anyone have a link to some IOS examples that would allow them to be bonded together? \ We would like the ability to download at the combined T1 speed of 3 mb. Currently we seem to max out at only 1 T1 speed. I did searches at Cisco on bonding, but could not come up with anything. Thank you. Matt Goodhue Bonding, to be specific, is a layer 1 technique intended for videoconferencing, and is not supported by routers. It's actually BONDING, an acronym for something that escapes me. To do it on the router, look at multilink PPP for a layer 2 solution, and also per-packet and per-flow load balancing at layer 3. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13915t=13914 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Booting in rom-mode on a cat5500 [7:13916]
Hi guys, I got a cat5500 originally running on 16megs of dram and 8megs of flash on some old ass code. I took out that 16megs dram stick and traded it off for a carnesada burrito. Luckily, I had a 32megs dram stick left so I plugged it into the cat5500 and it worked like a champ. After finishing my burrito, I got so hyped. So I decided to upgrade the old ass code to some new kick ass code, which was 5.something. I dont' remember. Everythign went smooth. The new code was rocking and rolling. I was able to use some new features such as cntrl-p to repeat commands and question to list out some options. So basically I was stoke. Two weeks later, I got so broke. I traded my 32megs dram stick with my next door amigo for his old ass 16megs simms and another burrito. So that nite, my tummy was full, well satisfied. Okay, now here i am with my small ass 16megs dram stick in the cat5500, trying to boot up a code that is too big. It would boot to the point where it asks for the password, then it restarts again. So, my question is: is there a break sequence key that I can enter to bring me into rom-mode so I can rescue this baby? Thanks for any advice. And please dont tell me to take out the 8meg flash sticks and replace it with a blank 8meg flash stick to make the switch boot to rom-mode by itself. This will work for me, but unfortunately, my poor ass does not have money to buy another 8meg flash. If someone feels offended with this email, please don't be. Today is my 'ass day'. So give me a break. I only get to use the ass word once every 365 days. -Frank Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13916t=13916 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Dual T1 Bonding? [7:13914]
interface Multilink1 ip address x.x.x.x x.x.x.x no cdp enable ppp multilink multilink-group 1 interface Serial0 no ip address encapsulation ppp ip mroute-cache no fair-queue ppp multilink multilink-group 1 interface Serial1 no ip address encapsulation ppp ip mroute-cache no fair-queue ppp multilink multilink-group 1 -Original Message- From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 7:14 PM To: [EMAIL PROTECTED] Subject: Re: Dual T1 Bonding? [7:13914] Hello, We have a Cisco2621 with two T1 going to the same place. Does anyone have a link to some IOS examples that would allow them to be bonded together? \ We would like the ability to download at the combined T1 speed of 3 mb. Currently we seem to max out at only 1 T1 speed. I did searches at Cisco on bonding, but could not come up with anything. Thank you. Matt Goodhue Bonding, to be specific, is a layer 1 technique intended for videoconferencing, and is not supported by routers. It's actually BONDING, an acronym for something that escapes me. To do it on the router, look at multilink PPP for a layer 2 solution, and also per-packet and per-flow load balancing at layer 3. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13917t=13914 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
1,000 Commission Per Sale! 10215 [7:13919]
$1,000 Commission Per Sale! Great Vacations and Endless Opportunities! Thank you for responding to our ad for Entrepreneurs. We are presently taking on dealers who have seasoned sales experience or experience in running a small business and understand the ins and outs of sales. Our product is simple, We sell One Vacation Package that everyone wants. The customer receives: 8 luxury cruises (Carnival, Princess, Norwegian etc), 6 Las Vegas vacations (some even include airfare), and 12 Luxury Resort Vacations to places like Disney/Orlando (airfare is even included for 2 people), 8 days and 7 nights in the Bahamas (airfare included for 2 people) and much more. You will sell this package for an incredibly low price of only$1,399 and guess how much of that you keep. That's right your commission is $1,000 on every sale! Your product will only cost you $399 (buy as you go, you don't need to keep an inventory). There are independent dealers selling 7 to 10 of these every week, every week. Think about what you will be offering, over 25 premium vacations for what most people will pay for one vacation. Your customers will never be asked to attend any timeshare presentations and there is never a catch with any of these vacations. All vacations are open ended and 100% transferable to friends and family. Who would pay $3500 for a cruise when they can have 8 (same quality) cruises for only $1,399? All you need to do is put out some flyers and place a few inexpensive classified ads and then just sit back and watch your customers flock to you. A motivated dealer can plan on closing at least 3 deals his first week doing this. *** Make this business as big as you want it. How much would you pay to make $3,000 to $7,000 every week? Well we are going to make it very easy for you to get involved with our company, Your cost is a one time fee of only: $995. Here is what you will get with your investment: 1 presentation kit, a completely customized marketing strategy, professional marketing advice, flyers (on disk) and classified ads that work and much much more! But don't forget the most important thing, you are getting a real turn-key business selling a product that is in HUGE demand that you can work right out of your house. Spend more time with your family and do the things that you want to do. *** If you are truly interested in this opportunity and have sales experience and have $995 to invest in a time tested business of your own, we want to talk to you! Serious inquiries only. PS: You may be wondering how we can give so many vacations away for such a small price, well, the concept is simple. Every time a ship leaves port they are 30% unoccupied. Cruiselines lose money of every cabin that is empty. They would rather give away the cabin for free than have it empty because they know that if a couple goes on a beautiful luxury cruise for free, they will spend more money on the extras like: alcohol, tennis lessions, souviniers, clothes, etc. Statistically, a customer vacationing for free will spend more than the paying customers on the cruise so the cruiseline makes millions of dollars even though they are giving cabins away for free. It is that simple. The same applies to resorts. *** Call us toll free at 888-354-2111 Serious inquiries only. __ We strongly oppose the use of SPAM email and do not want anyone who does not wish to receive our mailings to receive them. As a result, we have retained the services of an independent 3rd party to administer our list management and remove list. This is not SPAM. If you do not wish to receive further mailings, please click below and enter your email at the bottom of the page. You may then rest-assured that you will never receive another email from us again. http://www.removeyou.com Member ID 027316 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13919t=13919 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: A PING - Connectivity Issue [7:13873]
That could not be the 'WHY' it happens because if I had done that with a PC the interface would not work, so there must be something other than it merely able to ping because it is its own interface. Thanks man From: Patrick Bass Reply-To: Patrick Bass To: [EMAIL PROTECTED] Subject: Re: A PING - Connectivity Issue [7:13873] Date: Thu, 26 Jul 2001 18:27:58 -0400 because your pinging your own interface Ray Smith wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Guys, I was putting a lab together and noticed something wierd. I configured my Sparc (Unix) station's Le0 interface with an IP address, brought it up and decided to play around with it a little. I noticed that I could ping the IP that I configured on the interface although it was disconnected from/plugged OUT of the hub. I asked one of the Unix guys at my job if this was strange and he said NO! He could not tell me why but only said that it will always be able to ping the IP address configured on the box despite the fact that it is not connected to a Hub. What I need to know guys is WHY. I am not just satisfied with the fact that it is suppose happen unless I can know WHY it happen. Any takers here? Thanks dude. Ray _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13918t=13873 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 1,000 Commission Per Sale! 10215 [7:13920]
screw the CCIE - this one offers higher pay, and sampling the product is a hell of a lot more fun! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Thursday, July 26, 2001 5:12 PM To: [EMAIL PROTECTED] Subject: 1,000 Commission Per Sale! 10215 [7:13919] Your cost is a one time fee of only: $995. Here is what you will get with your investment: 1 presentation kit, a completely customized marketing strategy, professional marketing advice, flyers (on disk) and classified ads that work and much much more! CL: that's 255 bucks cheaper than the CCIE lab. and no books or practice labs to buy. I'm in! CL: P.S. anyone want to buy into this chain letter I have? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13920t=13920 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Dual T1 Bonding? [7:13914]
excerpted below: Bandwidth ON Demand Interoperability Group (BONDING) Bandwidth ON Demand Interoperability Group (BONDING) is used for combining B channels together to increase bandwidth. Inverse multiplexing is used to take a single signal from a user's equipment and divide the signal into a number of channels for transmission over lines. An inverse demultiplexer at the receiving end then reassembles the data streams into the original single signal. Control for bonding resides in the application of a device, not in the EWSD switch -- Jonathan Howard C. Berkowitz wrote: Hello, We have a Cisco2621 with two T1 going to the same place. Does anyone have a link to some IOS examples that would allow them to be bonded together? \ We would like the ability to download at the combined T1 speed of 3 mb. Currently we seem to max out at only 1 T1 speed. I did searches at Cisco on bonding, but could not come up with anything. Thank you. Matt Goodhue Bonding, to be specific, is a layer 1 technique intended for videoconferencing, and is not supported by routers. It's actually BONDING, an acronym for something that escapes me. To do it on the router, look at multilink PPP for a layer 2 solution, and also per-packet and per-flow load balancing at layer 3. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13921t=13914 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Booting in rom-mode on a cat5500 [7:13916]
Certainly on Sup I blades and I suppose on Sup II and III blades there is a set of jumpers on the card labeled diag. You'll have to find a jumper to fit; but that will get you into rom mon. On the Sup I it is behind the usage display. -Original Message- From: Frank Kim [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 6:46 PM To: [EMAIL PROTECTED] Subject: Booting in rom-mode on a cat5500 [7:13916] Hi guys, I got a cat5500 originally running on 16megs of dram and 8megs of flash on some old ass code. I took out that 16megs dram stick and traded it off for a carnesada burrito. Luckily, I had a 32megs dram stick left so I plugged it into the cat5500 and it worked like a champ. After finishing my burrito, I got so hyped. So I decided to upgrade the old ass code to some new kick ass code, which was 5.something. I dont' remember. Everythign went smooth. The new code was rocking and rolling. I was able to use some new features such as cntrl-p to repeat commands and question to list out some options. So basically I was stoke. Two weeks later, I got so broke. I traded my 32megs dram stick with my next door amigo for his old ass 16megs simms and another burrito. So that nite, my tummy was full, well satisfied. Okay, now here i am with my small ass 16megs dram stick in the cat5500, trying to boot up a code that is too big. It would boot to the point where it asks for the password, then it restarts again. So, my question is: is there a break sequence key that I can enter to bring me into rom-mode so I can rescue this baby? Thanks for any advice. And please dont tell me to take out the 8meg flash sticks and replace it with a blank 8meg flash stick to make the switch boot to rom-mode by itself. This will work for me, but unfortunately, my poor ass does not have money to buy another 8meg flash. If someone feels offended with this email, please don't be. Today is my 'ass day'. So give me a break. I only get to use the ass word once every 365 days. -Frank Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13922t=13916 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet Tutorial [7:13281]
In a few years, I need a 21 monitor myself. In the meantime, I am clinging on to my 20/20 vision for now. -dlb Tom Lisa wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Dave, Gave it a try. Unfortunately it only affects the window bars menus, not the display area within netscape. Besides, I think I've convinced the college to give me a 21 monitor.Thanks for trying. Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy David L. Blair wrote: Tom, When I was on a project where the display parameters were tightly regulated, I found that if you goto to the Display Appearance and change the scheme from Windows Standard to Windows (large) or (very large) that made the screen much easier to read for those who have less 20/20 vision. We also tried the items that you and Priscilla suggested, but were overruled by the client. The Appearance was the only display parameter we were allowed to change. Already tried changing the font size, in both IE Netscape. It seems it only changes the font on the section headings, not the text body. Unfortunately, 12pt is beginning to get too small for me. And yes, my 17 monitor is at 800x600. Next stop, tri-focals a 21 monitor. -- Through Complexity there is Simplicity, Through Simplicity there is Complexity David L. Blair - CCNP, CCNA, MCSE, CBE, A+, 3Wizard Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13923t=13281 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet Tutorial [7:13281]
I was working at the University of Illinois when Marc Anderson was just a low paid graduate student for Larry Smarr at NCSA and Mosaic was released and Netscape for just a project by some unknown graduate students. -dlb Tom Lisa wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Maybe I should go back to Mosaic! :) Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy Priscilla Oppenheimer wrote: At 07:53 PM 7/24/01, Tom Lisa wrote: Dave, Gave it a try. Unfortunately it only affects the window bars menus, not the display area within netscape. Netscape!?! That's your problem. Just kidding. ;-) Besides, I think I've convinced the college to give me a 21 monitor.Thanks for trying. Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy David L. Blair wrote: Tom, When I was on a project where the display parameters were tightly regulated, I found that if you goto to the Display Appearance and change the scheme from Windows Standard to Windows (large) or (very large) that made the screen much easier to read for those who have less 20/20 vision. We also tried the items that you and Priscilla suggested, but were overruled by the client. The Appearance was the only display parameter we were allowed to change. Already tried changing the font size, in both IE Netscape. It seems it only changes the font on the section headings, not the text body. Unfortunately, 12pt is beginning to get too small for me. And yes, my 17 monitor is at 800x600. Next stop, tri-focals a 21 monitor. -- Through Complexity there is Simplicity, Through Simplicity there is Complexity David L. Blair - CCNP, CCNA, MCSE, CBE, A+, 3Wizard Priscilla Oppenheimer http://www.priscilla.com [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13925t=13281 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: Re: 1,000 Commission Per Sale! (Hmm... Smells like Spam [7:13924]
My Favorite Part is the .sig block: [snip] __ We strongly oppose the use of SPAM email and do not want anyone who does not wish to receive our mailings to receive them. As a result, we have retained the services of an independent 3rd party to administer our list management and remove list. This is not SPAM. [/snip] So remember kids... As long as you tell your victim that the completely unsolicited, not to mention wholly off-topic, commercial email is not SPAM, and make up some song and dance about how you've gone to great lengths to get some kid in the basement of the science building to set up the Majordomo on his Linux box, then it's not SPAM. Right... - Original Message - From: Chuck Larrieu To: Sent: Thursday, July 26, 2001 8:37 PM Subject: RE: 1,000 Commission Per Sale! 10215 [7:13920] screw the CCIE - this one offers higher pay, and sampling the product is a hell of a lot more fun! It's tempting Chuck... Very tempting... Alan~ CCIE # [Recently dispatched from the San Jose lab... ;) ] [ to be replaced soon... Hopefully...] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13924t=13924 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 1,000 Commission Per Sale! 10215 [7:13926]
since they have to pay for every minute on the 888 number everyone should be sure and call them and let them know how much you appreciate having their spam shoved down your mailbox. Call long, call often. - James D. Wilson, CCDA, MCP non sunt multiplicanda entia praeter necessitatem William of Ockham (1285-1347/49) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Thursday, July 26, 2001 5:12 PM To: [EMAIL PROTECTED] Subject: 1,000 Commission Per Sale! 10215 [7:13919] $1,000 Commission Per Sale! Great Vacations and Endless Opportunities! Thank you for responding to our ad for Entrepreneurs. We are presently taking on dealers who have seasoned sales experience or experience in running a small business and understand the ins and outs of sales. Our product is simple, We sell One Vacation Package that everyone wants. The customer receives: 8 luxury cruises (Carnival, Princess, Norwegian etc), 6 Las Vegas vacations (some even include airfare), and 12 Luxury Resort Vacations to places like Disney/Orlando (airfare is even included for 2 people), 8 days and 7 nights in the Bahamas (airfare included for 2 people) and much more. You will sell this package for an incredibly low price of only$1,399 and guess how much of that you keep. That's right your commission is $1,000 on every sale! Your product will only cost you $399 (buy as you go, you don't need to keep an inventory). There are independent dealers selling 7 to 10 of these every week, every week. Think about what you will be offering, over 25 premium vacations for what most people will pay for one vacation. Your customers will never be asked to attend any timeshare presentations and there is never a catch with any of these vacations. All vacations are open ended and 100% transferable to friends and family. Who would pay $3500 for a cruise when they can have 8 (same quality) cruises for only $1,399? All you need to do is put out some flyers and place a few inexpensive classified ads and then just sit back and watch your customers flock to you. A motivated dealer can plan on closing at least 3 deals his first week doing this. *** Make this business as big as you want it. How much would you pay to make $3,000 to $7,000 every week? Well we are going to make it very easy for you to get involved with our company, Your cost is a one time fee of only: $995. Here is what you will get with your investment: 1 presentation kit, a completely customized marketing strategy, professional marketing advice, flyers (on disk) and classified ads that work and much much more! But don't forget the most important thing, you are getting a real turn-key business selling a product that is in HUGE demand that you can work right out of your house. Spend more time with your family and do the things that you want to do. *** If you are truly interested in this opportunity and have sales experience and have $995 to invest in a time tested business of your own, we want to talk to you! Serious inquiries only. PS: You may be wondering how we can give so many vacations away for such a small price, well, the concept is simple. Every time a ship leaves port they are 30% unoccupied. Cruiselines lose money of every cabin that is empty. They would rather give away the cabin for free than have it empty because they know that if a couple goes on a beautiful luxury cruise for free, they will spend more money on the extras like: alcohol, tennis lessions, souviniers, clothes, etc. Statistically, a customer vacationing for free will spend more than the paying customers on the cruise so the cruiseline makes millions of dollars even though they are giving cabins away for free. It is that simple. The same applies to resorts. *** Call us toll free at 888-354-2111 Serious inquiries only. __ We strongly oppose the use of SPAM email and do not want anyone who does not wish to receive our mailings to receive them. As a result, we have retained the services of an independent 3rd party to administer our list management and remove list. This is not SPAM. If you do not wish to receive further mailings, please click below and enter your email at the bottom of the page. You may then rest-assured that you will never receive another email from us again. http://www.removeyou.com Member ID 027316 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13926t=13926 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 1,000 Commission Per Sale! 10215 [7:13927]
Ever hear of 1-800 (or 1-888) numbers being call-forward to 1-900 pay numbers? You get a nasty bill in the mail. As an aside, for those of you using dialup--one of the local police officers in charge of internet fraud told of an incident where people who visited a web page had their modems disconnect, their speakers silenced with the appropriate AT command, and then redial restoring their internet connectivity--via a 1-900 PAY NUMBER! What fun! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of James Wilson Sent: Thursday, July 26, 2001 7:41 PM To: [EMAIL PROTECTED] Subject: RE: 1,000 Commission Per Sale! 10215 [7:13926] since they have to pay for every minute on the 888 number everyone should be sure and call them and let them know how much you appreciate having their spam shoved down your mailbox. Call long, call often. - James D. Wilson, CCDA, MCP non sunt multiplicanda entia praeter necessitatem William of Ockham (1285-1347/49) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Thursday, July 26, 2001 5:12 PM To: [EMAIL PROTECTED] Subject: 1,000 Commission Per Sale! 10215 [7:13919] $1,000 Commission Per Sale! Great Vacations and Endless Opportunities! Thank you for responding to our ad for Entrepreneurs. We are presently taking on dealers who have seasoned sales experience or experience in running a small business and understand the ins and outs of sales. Our product is simple, We sell One Vacation Package that everyone wants. The customer receives: 8 luxury cruises (Carnival, Princess, Norwegian etc), 6 Las Vegas vacations (some even include airfare), and 12 Luxury Resort Vacations to places like Disney/Orlando (airfare is even included for 2 people), 8 days and 7 nights in the Bahamas (airfare included for 2 people) and much more. You will sell this package for an incredibly low price of only$1,399 and guess how much of that you keep. That's right your commission is $1,000 on every sale! Your product will only cost you $399 (buy as you go, you don't need to keep an inventory). There are independent dealers selling 7 to 10 of these every week, every week. Think about what you will be offering, over 25 premium vacations for what most people will pay for one vacation. Your customers will never be asked to attend any timeshare presentations and there is never a catch with any of these vacations. All vacations are open ended and 100% transferable to friends and family. Who would pay $3500 for a cruise when they can have 8 (same quality) cruises for only $1,399? All you need to do is put out some flyers and place a few inexpensive classified ads and then just sit back and watch your customers flock to you. A motivated dealer can plan on closing at least 3 deals his first week doing this. *** Make this business as big as you want it. How much would you pay to make $3,000 to $7,000 every week? Well we are going to make it very easy for you to get involved with our company, Your cost is a one time fee of only: $995. Here is what you will get with your investment: 1 presentation kit, a completely customized marketing strategy, professional marketing advice, flyers (on disk) and classified ads that work and much much more! But don't forget the most important thing, you are getting a real turn-key business selling a product that is in HUGE demand that you can work right out of your house. Spend more time with your family and do the things that you want to do. *** If you are truly interested in this opportunity and have sales experience and have $995 to invest in a time tested business of your own, we want to talk to you! Serious inquiries only. PS: You may be wondering how we can give so many vacations away for such a small price, well, the concept is simple. Every time a ship leaves port they are 30% unoccupied. Cruiselines lose money of every cabin that is empty. They would rather give away the cabin for free than have it empty because they know that if a couple goes on a beautiful luxury cruise for free, they will spend more money on the extras like: alcohol, tennis lessions, souviniers, clothes, etc. Statistically, a customer vacationing for free will spend more than the paying customers on the cruise so the cruiseline makes millions of dollars even though they are giving cabins away for free. It is that simple. The same applies to resorts. *** Call us toll free at 888-354-2111 Serious inquiries only. __ We strongly oppose the use of SPAM email and do not want anyone who does not wish to receive our mailings to receive them. As a result, we have retained the services of an independent 3rd party to administer our list management and remove list. This is not SPAM. If you do not wish to receive further mailings, please click below and
Windows 2000 MCSE Training Kit for sale! and Cisco books! [7:13929]
Hello, I am currently selling my Windows 2000 MCSE Training Kit from Microsoft. It contains the following Microsoft Press books: 1) Microsoft Windows 2000 Professional (Exam 70-210) 2) Microsoft Windows 2000 Server (Exam 70-215) 3) Microsoft Windows 2000 Network Infrastructure Administration (Exam 70-216) 4) Microsoft Windows 2000 Active Directory Services (Exam 70-217) This kit is brand new and includes a 120-day evaluation version of Windows 2000 Server. This is an excellent self-paced training kit. I'm selling this kit for: $140.00, and I will pick up the shipping charges. If you are interested please send an e-mail: [EMAIL PROTECTED] I also have three Cisco books: 1) All-In-One CCIE Study Guide (2nd Edition) by Rosevelt Giles) I'm selling this book for $40.00. 2) Internetworking Technologies Handbook (2nd Edition) by Cisco Press. I'm selling this book for $30.00 Thanks and I hope to hear from you soon. I perform all my transactions through Paypal, it is very simple, I send you the bill and you pay Paypal via a major credit card, I ship it out to you and then e-mail you the tracking number. Thanks, JC Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13929t=13929 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question for Support exam [7:13859]
If you are using a layer 3 switch, then i would go with option 2 because each vlan on the switch corresponds to a logical interface on the router. So that would be my 0.02 cent answer. Imran. --- Yan Yin wrote: Hi all, Here I have one Support exam question, need your answer and explanation. Thanks. What does a switch vlan correspond to the vlan routing paradigm? 1) Bridge Group 2) Router interface 3) ISL trunk identifier 4) Single routed subnet 5) Spanning-tree branch Regards, Yan Yin [EMAIL PROTECTED] = Imran Moin Network Engineer CCNA __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13930t=13859 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Catalyst 6509 vs BlackDiamond [7:13837]
The big question is will Extreme and Foundry be around next year? Perry J. Lucas -Original Message- From: John Hardman [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 2:18 PM To: [EMAIL PROTECTED] Subject: Re: Catalyst 6509 vs BlackDiamond [7:13837] Hi It's true. It's also true that in similar tests with a Foundry will also out perform a Cat. But keep in mind that a lot of this works out to be FUD. Sales people from each company will have various reasons why you should choose their product over the other. The bottom line is that you have to choose which is right for your company based on it's business and technical needs. Both Extreme and Foundry are making a strong push into Cisco's enterprise switch market share. Their products are very competitive, especially at the price point. If I could get switches with Foundry's architecture, Extreme's network management software and CLI, and Cisco's end to end solutions, I would be a very happy engineer! $0.02 -- John Hardman CCNP MCSE mishaal wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13931t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Catalyst 6509 vs BlackDiamond [7:13837]
Hi You have a point there, but I will bet Foundry will be, not too sure about Extreme. Foundry just reported their 10th straight profitable quarter. -- John Hardman CCNP MCSE Perry J. Lucas wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... The big question is will Extreme and Foundry be around next year? Perry J. Lucas -Original Message- From: John Hardman [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 2:18 PM To: [EMAIL PROTECTED] Subject: Re: Catalyst 6509 vs BlackDiamond [7:13837] Hi It's true. It's also true that in similar tests with a Foundry will also out perform a Cat. But keep in mind that a lot of this works out to be FUD. Sales people from each company will have various reasons why you should choose their product over the other. The bottom line is that you have to choose which is right for your company based on it's business and technical needs. Both Extreme and Foundry are making a strong push into Cisco's enterprise switch market share. Their products are very competitive, especially at the price point. If I could get switches with Foundry's architecture, Extreme's network management software and CLI, and Cisco's end to end solutions, I would be a very happy engineer! $0.02 -- John Hardman CCNP MCSE mishaal wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13932t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Catalyst 6509 vs BlackDiamond [7:13837]
Maybe as part of Cisco! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Perry J. Lucas Sent: Thursday, July 26, 2001 9:15 PM To: [EMAIL PROTECTED] Subject: RE: Catalyst 6509 vs BlackDiamond [7:13837] The big question is will Extreme and Foundry be around next year? Perry J. Lucas -Original Message- From: John Hardman [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 2:18 PM To: [EMAIL PROTECTED] Subject: Re: Catalyst 6509 vs BlackDiamond [7:13837] Hi It's true. It's also true that in similar tests with a Foundry will also out perform a Cat. But keep in mind that a lot of this works out to be FUD. Sales people from each company will have various reasons why you should choose their product over the other. The bottom line is that you have to choose which is right for your company based on it's business and technical needs. Both Extreme and Foundry are making a strong push into Cisco's enterprise switch market share. Their products are very competitive, especially at the price point. If I could get switches with Foundry's architecture, Extreme's network management software and CLI, and Cisco's end to end solutions, I would be a very happy engineer! $0.02 -- John Hardman CCNP MCSE mishaal wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... How true is this? Can anyone throw some light on this report from www.zdlabs.com, 70-80% packet loss is rather substantial..hope it's not true! thanks From ZDLAbs : In Layer 2 mode, the Black Diamond and Alpine switches forwarded 100% of the traffic offered during the test without dropping a single packet. This resulted in a throughput of 57.1 million packets/second for the Black Diamond and over 38 million packets/second for the Alpine using 64-byte packets. These results represent the maximum throughput possible, given the port configurations of the switches. The Cisco Catalyst 6509 lost over 78% of the packets offered during the Layer 2 full mesh test at the 64-byte packet size. According to the Catalyst 6509 documentation, the 6509 switch fabric is capable of forwarding 15 million packets/second. This rate is substantially less than the 57.1 million packets/second offered during our test, which explains the large packet loss. 'The Black Diamond and Alpine switches successfully routed 100% of the packets offered (over 5.7 billion 64-byte packets) during the test without dropping a single packet. This results in a Layer 3 throughput of over 95.2 million packets/second for the Black Diamond and over 47.6 million packets/second for the Alpine with 64-byte packets. The Layer 3 full mesh results for the Cisco Catalyst 6509 were very similar to the Layer 2 results. The switch dropped a large number of packets at all block sizes (86.86% with 64-byte packets). As in the previous tests with Catalyst 6509 we verified that the internal switch counters matched the results from the SmartFlow application and that there were no packet errors during the test. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13933t=13837 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BGP Question -Help Pease [7:13934]
Greetings, Need your expertise on some BGP Design issues. We currently have 2 T3 connections, one to Sprint and the other to UUNet. We're getting a 3rd T3 (internet connection from Sprint) to a new building on campus that's going to be connected to the old building with existing internet connection (I hope that made some sense!!!). What's the best way to design or setup BGP with 3 internet connections. Thanks for your time, Nabil Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13934t=13934 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
