what does "peer routers" mean? [7:35705]
OSPF and EIGRP could support a maximum of 50 peer routers. Does it mean only 50 routers using OSPF or EIGRP can connect to the same subnet? Thank you in advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35705&t=35705 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what does "peer routers" mean? [7:35705]
George and Tom, Thank you for your answer. Could you give me more detail about "an area"? Is it a subnet or AS? - Original Message - From: "Tom Petzold" To: "mlh" ; Sent: Monday, February 18, 2002 11:01 AM Subject: RE: what does "peer routers" mean? [7:35705] > Peer routers are routers in the same area. > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > mlh > Sent: Sunday, February 17, 2002 11:32 PM > To: [EMAIL PROTECTED] > Subject: what does "peer routers" mean? [7:35705] > > > OSPF and EIGRP could support a maximum of 50 peer routers. > Does it mean only 50 routers using OSPF or EIGRP can connect to the same > subnet? > > Thank you in advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35741&t=35705 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How does repeater work? [7:36323]
I cannot agree that bridges are often described as multi-port repeaters. Actually, hubs are multi-port repeaters. - Original Message - From: "Kevin Cullimore" To: Sent: Monday, February 25, 2002 5:34 AM Subject: Re: How does repeater work? [7:36323] > The classical repeater as described in the first couple of chapters of > nearly every networking/internetworking technologies survey is a little > before my time, but here are some thoughts: > > -bridges are often described as multi-port repeaters, leaving the impression > that mere repeaters have but a single port (please note, that the coinage > described might involve distinguishing ingress from egress ports, but that's > hardly clear to the uninitiated). I suppose that an argument might be made > to lend legitimacy to the practice of contrasting the prefix multi with > something other than a term specifically denoting "one" or "single", but I'm > not sure how relevant that will turn out to be as time erodes those cases > without corroborating evidence. > > -to the extent that the purpose of the repeater is to extend a LAN, one > might picture a device with two cables (or other data-traversing-friendly > media) attached: one connected to the original network, one connected to the > extension. I'm honestly not sure how else it would function. > > -to the extent that the characterization i've provided is accurate, it might > be useful to apply bridging concepts in order to discern the functionality > of the repeater. A bridge accepts packets on a given port and, by charter, > does NOT transmit replicas of those packets on the same (ingress) port. I > therefore picture a repeater as a device that has 2 connections: one to the > original network, one to the LAN extension. If this is the case, I would > presume that the relevant functionality is to perpetuate packets received on > one port to the other. If that is the case, the repeater cannot be said to > create a loop. Note: if a loop already exists, the repeater would perpetuate > that condition, by design. > > All: as I mentioned, repeaters ceased to be relevant before my time. If > anyone knows differently about the topics I've alluded to, please post your > dissenting statement. > > Thanks, > > > - Original Message - > From: "mlh" > To: > Sent: Saturday, February 23, 2002 3:18 PM > Subject: How does repeater work? [7:36323] > > > > Could anybody tell me how repeaters work ? I don't understand how repeater > > can regenerate > > the two-way signals from both segment connected to the repeater. Isn't it > > forming a loop? > > Pls forgive me asking the stupid question. > > > > Thanks in advance. > > > > mlh Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=36395&t=36323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Delete VLAN [7:37254]
In a VTP domain environment, when you use the command "clear vlan 5" on a Catalyst configured as a VTP server, do you actually remove vlan 5 only from that Catalyst or from all Catalysts in that VTP domain? Thank you. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37254&t=37254 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Not the whole domain - Re: Delete VLAN [7:37254]
Hi,Dave, First, thank you for your answer. But I really got confused. Pls read the following excerpt about Deleting VLAN from the book of Cisco LAN Switching written by Clark & Hamilton : You can remove VLANs from the management domain using the clear vlan vlan_number command. For example, if you want to remove VLAN 5 from your VTP management domain, you can type the command clear vlan 5 on a Catalyst configured as a VTP server. You cannot delete VLANs from a VTP client Catalyst. If the Catalyst is configured in transparent mode, you can delete the VLAN. However, the VLAN is removed only from the one Catalyst and is not deleted throughout the management domain. All VLAN creations and deletions are only locally significant on a transparent Catalyst. So, according the above words, it just remove the portion of vlan 5 on that Catalyst which clear command was executed. Is it right? >From Woody's answer to my last question : Vlan 5 will also be cleared on all switches that are configured as clients as well. Also, any port that is configured on those switches will also lose their vlan assignment to vlan 5. I raised another question: if Woody is right, the portion of vlan 5 on the Catalysts configured as clients will also be removed, then my question is: Will all clients or just clients configured from that server-Catalyst which clear command is executed be removed? Sorry for taking you long time to read my questions. Any suggestion would be welcome. mlh - Original Message - From: "MADMAN" To: Sent: Tuesday, March 05, 2002 10:14 AM Subject: Re: Delete VLAN [7:37254] > the whole domain. > > Dave > > mlh wrote: > > > > In a VTP domain environment, when you use the command "clear vlan 5" > > on a Catalyst configured as a VTP server, do you actually remove vlan 5 > > only from that Catalyst or from all Catalysts in that VTP domain? > > > > Thank you. > -- > David Madland > Sr. Network Engineer > CCIE# 2016 > Qwest Communications Int. Inc. > [EMAIL PROTECTED] > 612-664-3367 > > "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37285&t=37254 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Not the whole domain - Re: Delete VLAN [7:37254]
Hi, Patrick, Daniel, Persio, Woods, Dave, Oleg, Thank you all for your detailed explain. Finally, I got it. Please forgive me for my stupid questions. mlh Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37316&t=37254 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: question about switching [7:38165]
I think all your guys are right. The confusion is sometime people use packet switching and routing alternatively. I guess the called packet switching must be borrowed form frame switching of switch technology. - Original Message - From: "John Green" To: Sent: Wednesday, March 13, 2002 8:39 PM Subject: Re: question about switching [7:38165] > yes that is exactly what i wanted to clear up, as in a > router. ie routing is just a decision, and the > physical moving of the packet between the interfaces > (based on the above decision) is called as switching. > right ? > > and in a "switch" the moving of frames between > appropriate ports (based on MAC addresses) is called > as switching. right ? > > hope i got it all correct !! > > --- PING wrote: > > I am not sure if I understood the question > > completely but > > I think you are trying to distinguish the L3 > > switching and > > Routing? > > > > Routing and Switching are two different functions > > taking place > > within router. Routing takes place before switching > > can occur. > > So, router first has to determine "where" this > > packet needs to go, > > and which interface is headed towards that network, > > and that is > > "routing". Only after that, it will actually "move" > > the packet to that > > exit interface and that is "switching". > > > > Nadeem > > == > > > > > > > > > > > > > > John Green wrote: > > > > > "Routers use Layer 3 switching to route a packet, > > > and Layer 2 switches use Layer 2 switching to > > forward > > > frames." > > > > > > above is from the cisco web site. Layer 2 switches > > use > > > layer2 (ie datalink) for forwarding frames. fine. > > > > > > but for Routers also it says that it uses layer3 > > for > > > routing, although it is "forwarding" packets > > between > > > interfaces in a router. right ? (based on packet > > > forwarding decision taken according to the routing > > > table constructed) > > > > > > just wanted to confirm... > > > > > > __ > > > Do You Yahoo!? > > > Try FREE Yahoo! Mail - the world's greatest free > > email! > > > http://mail.yahoo.com/ > [EMAIL PROTECTED] > > > __ > Do You Yahoo!? > Try FREE Yahoo! Mail - the world's greatest free email! > http://mail.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38204&t=38165 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
about routing protocols [7:38393]
Hi, there, The following question has been given a reference answer : ABCD But I am not sure: All routing protocols update periodically? All of them send hello message? what is the difference between information about links and routes? What are some characteristics of routing protocols? A - Send periodic updates. B - Have a separate hello mechanism. C - Exchange information about links. D - Exchange information about routes. E - No answer is correct Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38393&t=38393 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Layer 3 switch ? [7:38358]
According to Clark's Cisco LAN Switching(page 452 ), layer 3 switching techniques can be grouped into two categories: Routing switches Switching routers mlh - Original Message - From: "Larry Letterman" To: Sent: Friday, March 15, 2002 2:48 AM Subject: RE: Layer 3 switch ? [7:38358] > A true router, 2621/3640/7200, is not usually considered > a L3 switch. A 6500 with an MSFC module installed can be > is a L3 switch and will perform L2/L3 routing and switching. > > A 6500 without the MSFC module is just a large high speed switch, > capable of only L2 switching. > > A layer 3 switch usually routes the first packet in the flow of data > and then switches the rest in the switching hardware. This is why L3 > routing/switching is quite a bit faster. A traditional router will use > IOS software to determine routes and the switch each packet between the > interfaces in the router. > > > Larry Letterman > Cisco Systems > [EMAIL PROTECTED] > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > John Green > Sent: Thursday, March 14, 2002 10:50 PM > To: [EMAIL PROTECTED] > Subject: Layer 3 switch ? [7:38358] > > > Is it ok to refer to a "router" as a Layer 3 switch ? > > cisco 6500 was referred to as a Layer 3 switch. > > question: does it(6500) have routing capabilities ? > - > > to connect to different vlans one needs a router. > right ?? (as shown below) > switchA ROUTER---switchB > > but say some nodes connected to switchB are on the > vlan of switchA. so now to connect switchA and switchB > can router be ok ? > -- > > __ > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38407&t=38358 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
extended ping command of IOS [7:38492]
Look at the following result of extended ping command: Sending 2, [1500..2000] byte ICMP Echos to 172.16.113.17, timeout is 2 seconds: Packet has IP options: Total option bytes=39, padded length=40 Record route: 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 Reply to request 0 (28ms) (size 1500). Received packet has options Total option bytes=40, padded length=40 Record route: 172.16.192.5 172.16.113.16 172.16.113.17 172.16.113.17 172.16.192.6 172.16.192.6 172.16.192.5 0.0.0.0 0.0.0.0 0.0.0.0 End of list Unreachable from 172.16.192.0, maximum MTU 1478 (size 2000) Received packet has options Total option bytes= 39, padded length=40 Record route: 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 My question is: if the path's maximum MTU=1478, how reply to request 0 (size 1500) exists and how request goes through routers to the destination? Thank you. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38492&t=38492 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Layer 3 switch ? [7:38358]
no, IRB is a technique integrating routing and bridging. but switching routers use hardware switching technique which based on layer 3 address not layer 2 address. this is one of the differences between router switches and switching routers. it's my point, pls correct it. - Original Message - From: "Chuck" To: Sent: Friday, March 15, 2002 11:24 AM Subject: Re: Layer 3 switch ? [7:38358] > so if I enable IRB on my 2501, I now have a layer 3 switch? ;-> > > > ""mlh"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > According to Clark's Cisco LAN Switching(page 452 ), > > layer 3 switching techniques can be grouped > > into two categories: > > Routing switches > > Switching routers > > > > mlh > > > > - Original Message - > > From: "Larry Letterman" > > To: > > Sent: Friday, March 15, 2002 2:48 AM > > Subject: RE: Layer 3 switch ? [7:38358] > > > > > > > A true router, 2621/3640/7200, is not usually considered > > > a L3 switch. A 6500 with an MSFC module installed can be > > > is a L3 switch and will perform L2/L3 routing and switching. > > > > > > A 6500 without the MSFC module is just a large high speed switch, > > > capable of only L2 switching. > > > > > > A layer 3 switch usually routes the first packet in the flow of data > > > and then switches the rest in the switching hardware. This is why L3 > > > routing/switching is quite a bit faster. A traditional router will use > > > IOS software to determine routes and the switch each packet between the > > > interfaces in the router. > > > > > > > > > Larry Letterman > > > Cisco Systems > > > [EMAIL PROTECTED] > > > > > > > > > -Original Message- > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > > John Green > > > Sent: Thursday, March 14, 2002 10:50 PM > > > To: [EMAIL PROTECTED] > > > Subject: Layer 3 switch ? [7:38358] > > > > > > > > > Is it ok to refer to a "router" as a Layer 3 switch ? > > > > > > cisco 6500 was referred to as a Layer 3 switch. > > > > > > question: does it(6500) have routing capabilities ? > > > - > > > > > > to connect to different vlans one needs a router. > > > right ?? (as shown below) > > > switchA ROUTER---switchB > > > > > > but say some nodes connected to switchB are on the > > > vlan of switchA. so now to connect switchA and switchB > > > can router be ok ? > > > -- > > > > > > __ > > > Do You Yahoo!? > > > Yahoo! Sports - live college hoops coverage > > > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38493&t=38358 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Dennis Laganiere's rif examples [7:36228]
Hi, Dennis, First, thank you for your great site, it's useful. I have a question about your article: How to read the Routing Information Field (RIF) V2.1. Could you give me more detail about the tip you gave us: The RD field is always the same, regardless of the direction of travel. Thanks again. mlh > --- Dennis Laganiere > wrote: > > Hello all... > > > > I finally took the time this weekend to put up a > > basic website. There > > you'll find a copy of the RIF document, as well as > > some other stuff I've put > > together recently... I hope you find it useful... > > It's at > > www.laganiere.net... > > > > Let me know if you find it useful... > > > > --- Dennis > > > > > > > > -Original Message- > > From: Debbie Westall [mailto:[EMAIL PROTECTED]] > > Sent: Friday, February 22, 2002 11:05 AM > > To: [EMAIL PROTECTED] > > Subject: RE: Dennis Laganiere's rif examples > > [7:36228] > > > > > > Try this link, it allows you to test your RIF > > knowledge. > > > > http://www.loopy.org/rif.cgi > > > > I have attached Dennis' RIF paper. It's very good. > > > > Debbie Westall > > > > --- "Wright, Jeremy" wrote: > > > hes on this list somewhere ...:) but you might > > want > > > to check the groupstudy > > > archive > > > > > > -Original Message- > > > From: Eric Mwambaji [mailto:[EMAIL PROTECTED]] > > > Sent: Friday, February 22, 2002 11:18 AM > > > To: [EMAIL PROTECTED] > > > Subject: Dennis Laganiere's rif examples [7:36228] > > > > > > > > > Does anyone have a url to Dennis Laganiere's rif > > > examples? I almost have this RIF thing down but I > > > could use a few more examples. > > > > > > Eric > > > CCNP > > > > > > __ > > > Do You Yahoo!? > > > Yahoo! Sports - Coverage of the 2002 Olympic Games > > > http://sports.yahoo.com > > [EMAIL PROTECTED] > > > > > > __ > > Do You Yahoo!? > > Yahoo! Sports - Coverage of the 2002 Olympic Games > > http://sports.yahoo.com > > > > [GroupStudy.com removed an attachment of type > > application/pdf which had a > > name of Doing RIFs.pdf] > [EMAIL PROTECTED] > > > __ > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39005&t=36228 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Free Home routing moch labs?? [7:38943]
Maybe you can construct such a lab. - Original Message - From: "Tom Brokaw" To: Sent: Wednesday, March 20, 2002 10:49 AM Subject: Free Home routing moch labs?? [7:38943] > Does anyone know about any free routing labs to confiugreo n your home > routers? No simulators, or rack time. I am looking for a free or low > priced routing lab practice. I know about fatkid.com. I don't want to pay > $300,$650. etc. I am sure there is something out there to help us poor > Cisco students. Thanks. > Michael Williams wrote: Are you sure that's the workbook for $315? > > I think this is the workbook you speak of for $494: > > http://www.ipexpert.net/products/itemdetail.asp?SKU=ip0001 > > (watch for URL wrap) > > I'm not sure what that is for $315.. > > Anyone? > > Mike W. > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39007&t=38943 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Router question.. [7:39788]
how to use secondary ip address or sub-interface routing 3 different and separate LANs? how the 3 LANs connect to one interface of a router ? Thank you. mlh - Original Message - From: "Roberts, Larry" To: Sent: Friday, March 29, 2002 12:46 AM Subject: RE: Router question.. [7:39788] > Several ways. > > Sub-interfaces and inter-vlan routing ( 802.1q or isl ) or the less secure > but easier way of just using secondary IP's on the Ethernet interfaces. > > Thanks > > Larry > > -Original Message- > From: Ricky Chan [mailto:[EMAIL PROTECTED]] > Sent: Thursday, March 28, 2002 12:43 PM > To: [EMAIL PROTECTED] > Subject: Router question.. [7:39788] > > > Hi all, > > My boss just come up and give me a senario question like this. He told me > that I owned a company which uses 3 different LANs, for example, > 172.27.10.x, 172.27.11.x, 172.27.12.x. But I only have one cisco 2600 series > router and 2900 series switch. I can't use the serial ports from the router. > Just the two ethernet ports (by default). My question is, is it possible? > Please advice. > > Thanks > > Ricky Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39928&t=39788 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
IPX stands for- PIX Private Internet Exchange [7:27647]
IPX stands for - PIX Private Internet Exchange (Cisco) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=27647&t=27647 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Does session layer protocol use IP address ? [7:28378]
Hi, there, I read Todd Lammle's CCNA2.0 study guide and found this sentence: "Remember that none of the upper layers know anything about networking or network addresses." I am wondering if the session layer doesn't use network address, how can it establish a dialogue with other session layer in other host? Thank you for your time. mlh Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28378&t=28378 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
full-duplex Ethernet cable? [7:31643]
Hi, there, how many pairs of two-twisted cable are used for full-duplex Ethernet ? what is the difference between full- and half- duplex cable? Thank you in advance. Regrads, mlh Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=31643&t=31643 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How to make Serial 0 up/up without connecting [7:32410]
What is ethernet I/F ? - Original Message - From: "Engelhard M. Labiro" To: Sent: Friday, January 18, 2002 4:26 AM Subject: Re: How to make Serial 0 up/up without connecting [7:32410] > Use "loopback" command at the serial interface mode. > For ethernet I/F, use "no keepalive" command. > > > Could someone help me this : > > > > Configure Serial interface up/up without a cable connecting to it... Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32611&t=32410 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Requirement for PT CCIE or near CCIE (DC based w travel) [7:41253]
Do you really think you can find a CCIE who is designed for your strict requirement? I don't think so. - Original Message - From: "Jeff Glaser" To: Sent: Thursday, April 11, 2002 3:10 PM Subject: Requirement for PT CCIE or near CCIE (DC based w travel) [3:4413] > Following is a new request that is very thin re details for competitive > reasons, but really hot. > > The client is seeking a PT (approximately 1 week a month) CCIE or near CCIE > who has worked extensively with CISCO 7000, CISCO 12000 and GSR in a > variety of situations and for multiple clients, who can be available and > travel one week a month, conduct assessments, write recommendations, etc. > The client will use this consultant, if they meet the criteria and satisfy > the end clients, about 6-12 times over the next 12 months. Therefore > communication skills, consulting skills, maturity, etc. mean something. > PLEASE understand that this is part-time, on an as-needed basis. It could > lead to full time--but given this market, that is a wish rather than a > guarantee. > > THIS IS NOT an entry level position AND IT IS EXCLUSIVELY FOR INDEPENDENT > CONSULTANTS (1099 or CORP-CORP) who are either US Citizens, Green Card > Holders or TN VISA holders. No agencies or third party > > RATE IS CRITICAL--If yu think you can bill yourself at BIG 4( sorry > Andersen) rates, then please save us both a lot of trouble.and don't send in > the reusme. > > > Send resume, contact information and billing rate (travel will be billed > separately) to me ASAP. > > Thanks. > > Jeff > > > Sincerely, > > Jeffrey Glaser > NewGen Technologies, Inc. > 703-729-3382 > [EMAIL PROTECTED] > > > - > Do You Yahoo!? > Yahoo! Tax Center - online filing with TurboTax Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=41253&t=41253 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
what do the following sentences mean? [7:43803]
Hi, there, Could any body can tell me what the following two sentences mean? 1. An interface using an extended IP access list cannot be autonomously switched; 2. Dynamic access lists cannot be silicon switched and may affect silicon switching performance. both of them are excerpted from page 880 of Routing TCP/IP vol.1. Thanks. mlh Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43803&t=43803 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Is static routing classful or classless? [7:47223]
In other words, the advertisement of static routes are accompanied by the corresponding subnet masks? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47223&t=47223 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Is static routing classful or classless? [7:47223]
Hi, Reg, thank you for your clarification. static routes are the local routing information, so won't be advertised. - Original Message - From: "Reg Dwight" To: Sent: Sunday, June 23, 2002 12:29 AM Subject: Re: Is static routing classful or classless? [7:47223] > May I take a stab at this? Please correct me if I am wrong in concept or > understanding. > > Static routes are not advertised. They appear only in the routing table of > the local router. Therefore "classful" and "classless" do not apply. > > When you redistribute a static route into a routing protocol, then it > depends upon the nature of that protocol. I don't have any routers to > practice on, but I would surmise that if you were to redistribute a VLSM > static route into RIP, for example, that the advertisement would be at the > classful boundary. > > Please correct me where necessary. > > Reg > > > > ""mlh"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > In other words, the advertisement of static routes are accompanied by the > > corresponding subnet masks? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47275&t=47223 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Idle mode only for X.25 PVC or SVC? [7:48427]
Priscilla, Thank you for your reply. Yes, you're right. I really meant SVCs rather than PVCs. mlh - Original Message - From: "Priscilla Oppenheimer" To: Sent: Tuesday, July 09, 2002 10:07 PM Subject: RE: Idle mode only for X.25 PVC or SVC? [7:48427] > Lh Ma wrote: > > > > as we know, PLP operates in 5 modes: call setup, data transfer, > > idle, call > > clearing, and restart. also we know SVC will be torn down where > > DTEs have no > > more data to transfer. so I think for SVC, there is no idle > > mode. but on > > cisco webpage > > http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/x25.htm, it's > said > > idle mode is only for PVCs. > > Actually it says idle mode is only used for SVCs, which I'm sure is what you > meant to say and that's what's confusing you. > > I'm no X.25 expert, but idle mode probably occurs when there's no data and > the devices are just sitting there sending Receiver Ready packets to each > other. > > Closing the connection doesn't happen automatically. It requires one side to > send a Clear Request message. The provider can also clear a call. > > Howard would know more. Have you read his X.25 paper at CertificationZone? > It's great. > > Priscilla > > > Could anyone clear it out? > > Thank you in advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=48460&t=48427 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
strange result. [7:49877]
"show interface" display for token ring will show .. (all zeros) as the BIA interface MAC or hardware address. What does this usually mean? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=49877&t=49877 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSI...Please help... [7:51235]
the first one specifies tcp and the second one includes any upper protocols encapsulated in ip packets. - Original Message - From: "maine dude" To: Sent: Monday, August 12, 2002 12:16 PM Subject: OSI...Please help... [7:51235] > Please help... In the example :access-list 101 deny tcp host 172.16.3.10 > 172.16.1.0 0.0.0.255 eq ftpaccess-list 101 permit ip any any Do the terms > "tcp" and "ip" refer to the individual protocols or the stack ? I assume > they refer to the individual protocols as you could substitute them with > "udp" or "icmp" but then surely the last statement would allow only the > individual "ip" protocol and therefore all other packets such as tcp , udp, > icmp would be filtered. Or does tcp , udp , icmp get through because it is > encapsulated in ip ? ( I hate the OSI model ) -DJ > > > > - > Get a bigger mailbox -- choose a size that fits your needs. > > http://uk.docs.yahoo.com/mail_storage.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=51243&t=51235 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
