Re: CCIE techniques [7:29251]
In case the lab don't allow notepad to do cut-and-paste, I will enter all essential basic configuration at the banner motd Z Such as: banner motd Z no ip domain-loop no logging console ip classless line con 0 exec-time 0 0 alias exec inf show ip int brief alias exec i show ip route alias exec ci clear ip route * host R Z It is perfectly legal. On 14 Dec 2001 16:18:05 -0500, [EMAIL PROTECTED] (juno vtv) wrote: I have read about many techniques that people are using to improve in their lab studies. I was wondering if anybody would like to share their techniques? What do you do to improve speed, accuracy, troubleshooting,etc? If you have any ideas or advice, please share your thoughts. Thanks! -junovtv Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29330t=29251 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: T in IOS software [7:9053]
T in IOS release stands for Terrible. Please do not deploy any T chain IOS in your live environment (even the new feature seems attractive.). STRAND Scott wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Just curious. But what does the 'T' stand for in IOS releases? c2600-i-mz.121-4.bin c2600-i-mz.121-4.T1 Thanks, Scott Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13332t=9053 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Block Icq With Pix Firewall [7:12601]
Apart from port filtering. I may also config my name server to response a false ip address for icq.com domain. :) On 17 Jul 2001 11:49:35 -0400, [EMAIL PROTECTED] (Allen May) wrote: Well...since ICQ uses a wide range of ports it may be easier just to block access to the ICQ authentication server... - Original Message - From: Farhan Ahmed To: Sent: Tuesday, July 17, 2001 3:59 AM Subject: RE: Block Icq With Pix Firewall [7:12601] outbound 10 deny 0 0 icqport tcp apply (inside) 10 outgoing_src -Original Message- From: Makis To: [EMAIL PROTECTED] Sent: 7/17/01 12:13 PM Subject: Block Icq With Pix Firewall [7:12601] Hi How can i block Icq through Pix Firewall ? Any ideas ? Makis Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=12815t=12601 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE Group in Singapore. [7:12253]
For me, I heard Beijing is even more harsh and straight I choosed Singapore. My day is 6Aug. On 13 Jul 2001 12:22:12 -0400, [EMAIL PROTECTED] (Kevin Schwantz) wrote: David, Good luck to you. Many Singaporeans choose to do the lab elsewhere because rumour has it that the procter is VERY harsh. I hear that he has never passed a first timer. Kevin David Schaer wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I'm in Florida, but am testing in Singapore 11/21. Kevin Schwantz wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi Ronnie, I'm from one of the major ISP's in Singapore. What about you? Kevin Ronnie Tan wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Anyone from Singapore studying for CCIE Lab ? Schedule to take my lab this November. Would like to form a study group to pool resources together. Thanks. Ron Tan [EMAIL PROTECTED] Get free email and a permanent address at http://www.amexmail.com/?A=1 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=12816t=12253 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 100MB uplink to ISP [7:5026]
Hi Hans, Please note, 7206VXR has two PCI buses , each supports up to 600Mbps, slot0 ,1,3,5 connects to PCI mb1, slot2,4,6 connects to PCI mb2. You can look at for all PA required bus bandwidth point (kinda marking scheme), for atm is 300, for I/O with 1FE is 200, for FE-TX is 200. The max bandwidth point for each PCI bus is 600. Therefore, you can place two PA-A3 to mb2 (total bandwidth point = 600, max allowed bandwidth point), and then one PA-A3 to mb1. Since mb1 is included slot 0, in case it is NPE-300 the bandwidth point on mb1 will become 500. So, somthing like this: |5PA-A3 |6PA-A3 | |3|4PA-A3 | |1|2 | | 0NPE-300 | If you ever want to put another high-speed interface to either PA slot, you will have an error message of max bandwidth exceed on your console. You can, however, put an extra PA-FE to it and ignore the error message. BUT, I found if I do that, all the FE ports (PA, or NPE300) will have a serious level of interface reset. in whatever traffic rate. Suppose your ATMs are for incoming and outgoing traffic and not for transit, then all the ATMs are pumping data toward the FE on NPE-300. So, you can imagine it is not an effective configuration. You may find this link useful: http://www.cisco.com/univercd/cc/td/doc/product/core/7206/port_adp/3471pac6. htm If I were you, I will not go for 7206vxr since the initial config is already hitting the max. Neither 7507. if you don't mind, I will recommend a Juniper M5 with 2 dual ATM pics and 1 Quad FE pic. and you still have one pic slot for expansion. I am not associated with Juniper Networks in any way it is just my thought about Cisco 7206vxr series. Hans Stout wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hello group, I have a customer who wants to know which Cisco router (and appropriate port adapters) he needs to provide three 100MB uplinks to three different ISP4s. According to my own research, the 7206VXR with three OC-3 SONET-STM1 cards should do the job. Do you think this is the best solution ? I am not sure if the 7206 can handle that much bandwidth. Thanks for your input in advance. Regards, Hans Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5209t=5026 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Passed CCIE written exam [7:3140]
Congrad Vincent, When and where will be your lab test? Vincent Chong wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi everyone; After 3 days intensive and fast track study, I decided to take exam today. I finally passed the exam. It's my first try, I got a bare pass. But pass is a just a pass. I would like to say thank you to people provide me precious information. The exam is not difficult if you know the things cool. Good luck to everyone. Vincent Chong FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=3176t=3140 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: what material about CCIE written exam [7:3177]
There are a lot. 1. Interconnections 2nd ed. 2. Cisco LAN switching 3. I.R.A 4. TCP/IP illustrated vol1. 5. ICRC and ACRC. 6. Caslow's B.R.S for CCIEs. yudaocai wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... ciscocisco#,hi#! I passed the ccnp last month . I would pass the written of CCIE at the end of Match. I have read the book (ccie professional depvelopment routing tcp/ip,volume I which written by Jeff Doyle), what else books should i must read to pass the exam. do you have any suggestions? Thanks yudaocai [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=3177t=3177 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
upgrading boot and IOS...
Dear all, I have an old 7507 and would like to upgrade the boot image and IOS to 12.0.x... can someone suggests: 1. The most reliable IOS version in 12.0.x? 2. I would most like to take away my ethernet and channelized T1 module. (therefore, I have AIP, RSP2(64M ram), VIP+PA-FE-TX x 2, and SSIP8. Please see my sh ver below: Cisco Internetwork Operating System Software IOS (tm) RSP Software (RSP-AJSV-M), Version 11.2(18)BC, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) Copyright (c) 1986-1999 by cisco Systems, Inc. Compiled Thu 15-Apr-99 06:59 by krunyan Image text-base: 0x600108A0, data-base: 0x60C3A000 ROM: System Bootstrap, Version 11.1(2) [nitin 2], RELEASE SOFTWARE (fc1) BOOTFLASH: GS Software (RSP-BOOT-M), Version 11.1(6), RELEASE SOFTWARE (fc1) 7057old uptime is 7 weeks, 3 days, 3 hours, 28 minutes System restarted by reload at 08:04:18 HKT Fri Feb 16 2001 System image file is "slot0:rsp-ajsv-mz_112-18_BC.bin", booted via slot0 cisco RSP2 (R4600) processor with 65536K bytes of memory. R4600 processor, Implementation 32, Revision 2.0 Last reset from power-on G.703/E1 software, Version 1.0. SuperLAT software copyright 1990 by Meridian Technology Corp). Bridging software. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. TN3270 Emulation software. Primary Rate ISDN software, Version 1.0. Chassis Interface. 1 SSIP controller (8 Serial). 1 AIP controller (1 ATM). 1 MIP controller (2 T1). 2 VIP2 controllers (2 FastEthernet)(8 Ethernet). 8 Ethernet/IEEE 802.3 interface(s) 2 FastEthernet/IEEE 802.3 interface(s) 39 Serial network interface(s) 1 ATM network interface(s) 2 Channelized T1/PRI port(s) 123K bytes of non-volatile configuration memory. 20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). No slave installed in slot 3. Configuration register is 0x2102 Thanks a lot. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: More Info (OSPF and IP Classless)
"ip classless" or "no ip classless" only affect the way the router lookup the ip route table. It does not related to how you define the ospf area or how you redistribute the route (inc the default route). ""wind"" [EMAIL PROTECTED] wrote in message 99s3lo$8v1$[EMAIL PROTECTED]">news:99s3lo$8v1$[EMAIL PROTECTED]... Using different type area with differnet option redistribute default route, still the same result? Would like to hear the result? rgds; Vincent "John Neiberger" [EMAIL PROTECTED] ¼¶¼g©ó¶l¥ó [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Here is a link verifying that my understanding of 'no ip classless' is correct! http://www.cisco.com/warp/public/105/21.html So, referring to my other threads, why is OSPF overriding classfull routing table lookups? I'd rather not retype the whole thing, so if you'd like the details of my experiments, refer to the other threads. I just wanted to post this link to show that I wasn't entirely crazy! Maybe a little, but not entirely. Regards, John the Not-entirely Insane (formerly John the Cheerful, PKA John the Monday Grump) ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Autonomous Systems
I think it is related to traffic flow control within an organization. The more the intermediate AS, the more difficult for the source to control the forward and backward traffic flow. Ideally the traffic flow is symmetrical, if the traffic flow is not symmetrical, some "stars" or unnecessary large ping time may appear. If the intermediate AS is a single AS (at least appeared to be a single AS to external peers), it is a lot easier to control the traffic flow. Within the intermediate AS, it can be confederation or route reflector, plus OSPF or even static route to control internal routing behaviour. It will be a lot simpler to maintain symmetrical traffic. ""Alassar, Sonia"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]. .. Can someone tell me why a single autonomous system (AS) is better than having multiple autonomous systems? Sonia _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Pls help: ATM study materials
For me, I would recommend the book "Cisco ATM solution" ISBN:1-57870-213-5 "Li Li Zhao" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Dear all, My current project is all about ATM. But I never really touch ATM before. Anyone has idea on where I can find good ATM study materials? Thanks so much!! Best regards, lilly __ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Installed my first Juniper router :-)!
Well it is a bit off-topic, I have a M20 box and played it for a month. I read all the docs already. CLI-wise, yes, Juniper is a lot different from Cisco, but logical grouping makes it a lot easier to read. Another more powerful thing is the routing-policy part. I personally like it a lot, but it also make my life difficult. Complex! And it is definitely not for a new comer Still got some more to share, but they are off-topic. so I skipped it, let's go back to CCIE discussion. ""Net Bum"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi all, Just wanted to let you know how it went... It was an M5. The thing that surprised me first was how much this router weighs. I believe the chassis alone weighs 88 lbs. I had a few interface cards so perhaps the total weight was around 100 lbs. It took about 6 inches of rack height and took two of us to mount it. As far as configuring it, the CLI took a little getting used to. It looks somewhat like programming code (with indentations and hierarchies)... much different than Cisco's CLI. Once you learn the CLI, it becomes much easier to read and understand (because of the indentations and the logical groupings). It took me about an hour or so to configure it. My guess would be about 15-20 minutes if I had to do it again. I'm more comfortable with Cisco's CLI, probably because I've used it more...but I have to admit that I like many of the features of Juniper's CLI. They have the ability to save multiple older configs, just in case you want to go back... which is kinda cool. One thing that I would like for the M5 to have would be an RJ45 console input instead of a DB9. Also, I think my Cisco 7505 looks more stylish :-). I like the black metal look more than the silver metalic look. On the other hand, I have to admit that the M5 takes half the rack space of my 7505 (which is what the boss likes). I guess what really matters is reliability and performance. If it's anything like what my networker friend said, then I'm excited! We'll see how it goes :-)... _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE reading: TCP/IP by Doyle Vol.1 or 2
Yes, this is very true that Dr. Perlman's book should be on the shelf Here is my list (and the reading procedure.) 1. Interconnection 2nd edition 2. Routing TCP/IP vol 1 3. IRA. 1st edition 4. Caslow's 2nd edition. 5. Cisco ATM solution 6.Integrating Voice and data networks. I have already finished 1-3 multiple times and I really find it is helpful for my daily job. Now I am doing 4, after reading it from cover to cover, I will go for a written test. One more point, personally, I think Interconnection 2nd edition should be read and understand before anything else... "Craig Columbus" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I haven't read Doyle's Vol2, but if volume1 is taken as an indicator, I'm sure it'll be a good reference. I've read the others that you have on your list, with the exception of the Rossi book, and can confirm that you should have them on your shelf. In addition, you really should obtain a copy of Interconnections by Radia Perlman. Craig At 09:29 AM 1/20/2001 -0600, you wrote: Hello, I am looking at obtaining the books that are "Required reading" for the CCIE lab, according to www.ccbootcamp.com. I have heard great things about their perpetration labs and plan to buy them as soon as I can get my lab pieced together from optsys. The books listed are: Internet Routing Architectures, Bassam Halabi CCIE Prof. Development Routing TCP/IP Volume I, Jeff Doyle Cisco Certification Bridges, Routers, and Switches for CCIE's, Caslow Cisco Lan Switching (CCIE professional development) Cisco Catalyst Lan Switching Louis R Rossi, Louis D. Rossi, Thomas Rossi I noticed the TCP/IP book by Doyle has a Volume 1 and Volume 2. The first book seems to be the foundation book while the second one goes into BGP. Multicasting, etc. The Architecture book by Halabib is a must have, from everyone that has read it. It seems to be heavy in BGP more than other exterior routing protocols. Is Doyle vol 2 worth reading back to front or are their better reads one the list for that information? Thanks, -Eric Gunn _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP Reg Expressions
I use a very very stupid method to do it. But it works I found that all private AS path cannot be identified simply by the AS number That is, you apply an ASpath filtering list likes "sh ip bgp reg ^65001_" will not be able to display path beginning with 65001. I tried serveral methods at last I found this. "sh ip bgp reg ^.65001._". Is this what you want? "root" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hello, Does anyone know how to tell the router to allow all AS's except for Private AS's for Ingress traffic? I know that .* tells it to allow all paths, but how do I exclude 65xxx (Private AS's)? I know about the keyword "remove-private-as", but this is for Egress (outbound) traffic. As far as I know it's for when your using confederations and such. Is this something I need to be concerned with? I'm not sure if this is something I should be spending my time on or not. Is it necessary to block inbound Private AS's? Please excuse my ignorance, I'm still learning! Thank You, Andre _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How to check IDB?
Thanks Chris. Your information is very useful. Another question is, how can I know the IDB number for each IOS version? Any place I can find such info? Many thanks to you. "Chris McCoy" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... There's an undocumented command for showing the IDBs: [---Snip from Phrack 56---] @sh idb This command shows the hardware and software interface databases. this is cisco's way of keeping track of how many interfaces are present on the system.. includes hardware and software interfaces (physical, subinterfaces etc). there is a software limit of 1024 i believe in ios 11 and 2048 in ios 12. this is a global limit for the router. output: ctalkb#sh idb 19 SW IDBs allocated (2296 bytes each) 9 HW IDBs allocated (4008 bytes each) HWIDB#1 1 FastEthernet0/0 (Ether) HWIDB#2 2 Serial2/0:0 (Serial) HWIDB#3 3 Ethernet3/0 (Ether) HWIDB#4 4 Ethernet3/1 (Ether) HWIDB#5 5 Ethernet3/2 (Ether) HWIDB#6 6 Ethernet3/3 (Ether) HWIDB#7 7 Serial4/0 (Serial) HWIDB#8 8 Serial5/0 (Serial) HWIDB#9 9 Loopback0 Have fun... Chris M. --- Katson PN Yeung [EMAIL PROTECTED] wrote: Dear all, When reading Caslow's book, there is a term called IDB (Interface Descriptor Block). It specifies the max number of interface the router can have. Anyone knows which IOS command can check the IDB number of a router? Thanks. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Routing Problem
Hi, this is what I can think of. Correct me if I am wrong. Thanks. If your route is too specific and not able to be accepted by your upstream provider(s), the next good thing I can think of is to use a load balancer and insert it between the firewall and the web servers. - You obtain another block of IP from pacbell. Small size may do. - You configure your IGP to include IP addresses from both government and Pacbell. - You configure EBGP so that both of your router knows the best routes to return. Don't forget iBGP also. Set local preference if required. Also, inject default (or u do your own) if necessary. You don't need to annouce anything to ur upstream, therefore a private AS is needed. - You use a single block of private IP for your webservers. - At your load balancer, configure two IP maps. One map for IP of governmental ISP, another map for IP from Pacbell. - Configure ur DNS to announce 2(or more, if needed) IPs for any host you need to load balance. - Done - There are pros and cons. - The good thing is, you have another level of protection by the load balancer. (Smurf, ICMP bomb, scanning won't hurt you now). You may even consider throw away your PIXs. - The bad thing is, you have to buy two load balancers. :( - Also, you have to make sure the IP packet with right source IP to get out to the right uplink. Otherwise, the packet will be dropped by your ISP. This may need route-map. "Brian Wilcox" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I am currently adding another circuit to an additional ISP for my network. I want to be able to use the first circuit for a redundant backup but am not clear on how to accomplish this. The setup: (diagram located at http://www.geocities.com/bwilcox_email/Routing_Design.html) - watch word wrap Internal LAN connected to two PIX's, one in failover mode. The PIX's current default route points to the old ISP (government). All of our internal (public) addresses are from the Government ISP's address space, which we have a /25 block. I'm currently NATing my 10 net to this pool. I have an internal web server that the users need access to from outside the network. I'm adding the new circuit via PacBell and would like traffic to take that route and failover to the Government ISP. First solution: do BGP. Well, I can't. I only have a /25, too specific, from the Government ISP and I have to maintain the same address space. So my next thought would be to PAT everything out the PacBell circuit. That's fine and dandy but then the web server will reply to the source with a different address. I'd like to route the web server to the Government ISP. The only way I can think of doing that is via some sort of route map or policy map. Any comments would be greatly appreciated. Thanks, Brian __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP newbie question, interesting
In case you have 2 routers connect back-to-back with iBGP, you don't need IGP. ""Shaw, Winston Mr 5 SIG CMD"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I saw this original question yesterday but got sidetracked before I could send a response. I think BGP needs TCP port 179 just to operate properly. You would need at least static routes(Ip routing) just to get BGP routers talking to each other. So it maybe semantical, BGP cannot get of the ground without some other "routing" already in place. If the IGP or statics fail, so does BGP. Bottom Line: BGP is fully dependent on TCP/IP, as it has no inherent way of transporting its own packets. Once the TCP packet arrives at a BGP router it can strip away the TCP and IP headers and deal with the hellos, updates,etc. Thoughts anyone ? Winston. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco 2900 Series switch crashes other switch:Any inputs ?
Please take a look at "auto-negotiation" feature of all the switches. Try to turn this feature off and manually set the interconnected ports as 10-half, 10-full, 100-half and 100-full. Hope this helps. ""Pradeep Kumar"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi Folks, 1. I have 3 cases where a Cisco Cat 2912,2914 switch is crashing other Layer 4-7 capable switch. 2. On testing with a Sniffer, I noted a large number of Ethernet collisions. Any inputs - why ? the problem dissapears when I remove the Cat 2900 series. Thanks for responses. Pradeep ___ Visit http://www.visto.com/info, your free web-based communications center. Visto.com. Life on the Dot. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 7505 Reboots randomly Please HELP
Inamul, You are very lucky. Our 7507 routers came with 12.0.7T and it is so buggy. Memory leakage, 50% packet lost between FE and ATM interface, random reboot.blah blah We immediately turn to 12.0.10GD and *most* of the problem solved. ""Desai, Inamul"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... It has been running fine for past 6 months with same IOS and we have = not changed any thing on the router recently. I am=A0suspecting flash = memory or mem on VIP card. We do have SLA with Cisco,=A0 talked to=A0TAC and they do not think it's IOS cos 12.07T is solid and stable IOS.=20 The router has PRI module and VIP2 but only one of PRI is being used.=20 Last week, it went down 3 times in day so don't know what's going with = it. IOS won't even recognize VIP 50 card Cisco sent us and we put old one back. I will try booting without config and see what happens.. =A0 Thanks for help =A0 Inamul =A0 =A0 =A0-Original Message- From: Bowen, Shawn [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 21, 2000 1:11 PM To: Desai, Inamul; [EMAIL PROTECTED] Subject: RE: 7505 Reboots randomly Please HELP This is an issue with 12.07T, I have seen it a lot with AS5800's = running this code.=A0 Boot without a config let it get FULLY booted, then copy = start to run.=A0 This works for us, as it seems the router does not fully get initialized before certain configurations get loaded.=A0 Also, it seems = that console logging on the 5800 is what kills it when it runs out of memory after initializing all the modems on the 5800's(1400 of em!).=A0 Like I = said, I know why this happens on 5800s, I'm assuming the issue is following = to the 7505's.=A0 One other note, if you have the back plane oversubscribed = with certain cards it will do this as well. Shawn=20 -Original Message-=20 From: [EMAIL PROTECTED] [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ]On Behalf Of Desai, Inamul=20 Sent: Thursday, December 21, 2000 3:03 PM=20 To: [EMAIL PROTECTED]=20 Subject: 7505 Reboots randomly Please HELP=20 We got 7505 router reboots randomly twice a week or=20 when you write to config file. We gone thru changing=20 VIP card, resetting all cards, resetting mem modules, swapping=20 mem modules on VIP card, powering up and down and talked to Cisco.=20 It's running IOS 12.0(7)T with RSM, VIP2 and one PRI module.=20 No matter how many times you cold boot it, it brings all=20 enable LEDs except one on fastEthenet card. It does help=20 some time when I reset FLASH cards.=20 D u think it's flash cards ?=20 here is startup info:=20 System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM=20 SOFTWARE=20 Copyright (c) 1994 by cisco Systems, Inc.=20 RSP processor with 131072 Kbytes of main memory=20 = =20 Creading the file into memory...=20 Self decompressing the image :=20 #=20 = =20 ### = [OK]=20 %DBUS-3-SW_NOTRDY: DBUS software not ready after HARD RESET, elapsed = 12032,=20 stat=20 us 0x0=20 -Traceback=3D 60192B5C 60195A84 60195B3C 6015444C 601546C8 60128990 = 600109B0=20 %DBUS-3-SW_NOTRDY: DBUS software not ready after HARD_RESET, elapsed = 12032,=20 stat=20 us 0x0=20 -Traceback=3D 60192B5C 60194BA0 60195008 6019845C 600F4E64 600F4ECC = 600E9090=20 600E9=20 298 600EA3B0 600EA39C=20 %DBUS-3-SW_NOTRDY: DBUS software not ready after RESET, elapsed 12032,=20 status 0x=20 40=20 -Traceback=3D 60192B5C 60194EC0 60191AF4 60195054 6019845C 600F4E64 = 600F4ECC=20 600E9=20 090 600E9298 600EA3B0 600EA39C=20 System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM=20 SOFTWARE=20 Copyright (c) 1994 by cisco Systems, Inc.=20 RSP processor with 131072 Kbytes of main memory=20 = =20 Creading the file into memory...=20 Self decompressing the image :=20 #=20 = =20 ### = [OK]=20 %CBUS-3-CCBPTIMEOUT: CCB handover timed out, CCB 0x5800FF50, slot 3=20 -Traceback=3D 601A5348 601A398C 601A3E3C 6019D4F0 600EE70C 600F4EFC = 600E9090=20 600E9=20 298 600EA3B0 600EA39C=20 %LINK-4-NOMAC: A random default MAC address of .0c9a.31e7 has=20 been chosen. Ensure that this address is unique, or specify MAC=20 addresses for commands (such as 'novell routing') that allow the=20 use of this address as a default.=20 %SYS-4-CONFIG_NEWER: Configurations from version 12.0
Re: BGP newbie question, interesting
But remember, you have to do full iBGP peering inside your AS. When you have two routers, it wouldn't be a problem for no IGP. When you have more than two, unless they are connected by a share medium (such as Ethernet) and peer using the connected interface, otherwise, you have to make some intra-AS routing (by static route, for example.) before you can do full peering. Remember, there should be a level 3 connectivity before any BGP peering to occur. That my 0.02. "Dan West" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Is it possible to run IBGP as the ONLY IGP for a particular network (AS)?? I know all routers would know about outside networks, but how about different internal areas knowing about what other networks are advertising BGP seems so capable that it could almost be done without OSPF, EIGRP, etc thanks. = Dan West -- CCNA, CCNP (in progress) __ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: A challenge
Seems that at host A, you set the IP/mask as 10.1.1.2 255.255.255.255, gateway point to 10.1.1.1... "Brian" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Here is an interesting challenge, that may not be so obvious to some of you. You were told to configure a network as follows: 10.1.1.1/8 router 10.1.1.2/8 hostA gw 10.1.1.1 10.1.1.3/8 hostB gw 10.1.1.1 10.1.1.4/8 hostC gw 10.1.1.1 hostA cannot ping hostB or hostC. hostB and hostC have no problem pinging eachother however, but cannot ping hostA. hostA does get a reply however from all hosts if it pings 10.1.1.255. What do you suppose the problem is? I'll let you know when someone posts the right answer. Brian --- Brian Feeny, CCNP+ATM, CCDP [EMAIL PROTECTED] Network Administrator ShreveNet Inc. (ASN 11881) _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Question about Jeff Doyle book
Dear all, I have a question about reading Jeff Doyle book. I am studying EIGRP. At page 354, last paragraph. It said: "Note that Langley was the only feasible successor to subnet 10.1.7.0 because Chanute's locally calculated metric is higher than Wright FD (1024 768)" I have performed a calculation for every step of this example. At that stage, Chanute locally calculated metric to 10.1.7.0 should be (1 + 4) * 256 = 1280. And therefore, Chanute should advertise a distance of 1280 to Wright. So, the last statement of the above paragraph should be "(1280 768)", not "(1024 768)". Well, it does not affect the whole example, just want to know if my calculation is right or not or if it is a "bug" of the book. Thanks. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: EIGRP FORMAT HEADER
|- 8 --|- 8 --|- 8 --|- 8 --| - |Version | Opcode |checksum | | flag| | Sequence | |ACK| | Autonomous System Number| | TLVs| - version = eigrp version Opcode = 1 update, 2 query, 3 reply, 4 hello, 5 IPX SAP Flag= 0x0001 init, 0x0002 conditional receive bit Seq = 32 bit sequence num Automous num = id number of the EIGRP domain TLVs= 0x0001 EIGRP parameter 0x0003 Sequence 0x0004 IOS Software version 0x0005 Next multicast sequence 0x0102 IP int route 0x0103 IP ext route 0x0202 Appletalk int route 0x0203 Appletalk ext route 0x0204 Appletalk cable configuration 0x0302 IPX int route 0x0303 IPX ext route ""Jônatas Amorim"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi, I was wondering if someone could please send me the EIGRP FORMAT HEADER. Tank in advance, Jônatas _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: eXtreme ,juniper, Foundary and Cisco
This is very true. However, apart from the delivery, other routing switch vendor really did a good job. I am a Foundry Bigiron user and I am always satisfy with it's performance. Not mentioning the switching power and wirespeed ACL, it can be rebooted the box in 6 sec. EG. Last time I did a flash upgrade then reboot, it tooks 6 sec, then OSPF established in 10 sec, and no user notice that to them, it is just 10-12 icmp packet lost. Impressive? At 01:43 ¤U¤È 2000/12/11 -0800, Magnus Thorne wrote: Does anyone have any problems getting Cisco products? I've heard from a few friends that Cisco is having trouble delivering their equipment, so people are turning to Extreme, Juniper, and Foundary. -Mag Magnus Thorne eVoice, Inc. 1394 Willow Road Menlo Park, CA 94025 Direct: 650.330.3974 Main: 650.330.3700 Cell: 650.799.6887 Fax: 650.330.3901 DON'T PAY THE PHONE COMPANY FOR VOICEMAIL! Sign up at www.evoice.com or call 1.800.GET.EVOICE -Original Message- From: Bharat Suneja [mailto:[EMAIL PROTECTED]] Sent: Monday, December 11, 2000 9:33 AM To: [EMAIL PROTECTED] Subject: Re: eXtreme ,juniper, Foundary and Cisco I'd just like to point out one fact that most enterprises do give a lot of thought before making purchase decisions - Extreme, Foundry, Juniper, et al DO NOT have end-to-end solutions. Cisco does. The former also do not have a trained pool of network engineers to recommend and implement their products, whereas you'll find plenty of Cisco-trained, Cisco-experienced network engineers, designers support professionals. Cisco IOS offers one consistent interface CLI throughout most of its product line. Cisco also offers an impressive range of Network Management products that we're yet to see from other vendors. It's an endless debate - but not all enterprise networks require the performance capabilities of a Juniper or a Foundry. Having said that, let me also add that as things stand, by no means is Cisco technologically the most superior throughout the length breadth of its entire prouduct line. Juniper, Extreme, Foundry and others do have their niches that they fill quite effectively, and pose challanges to Cisco in those markets. And as someone correctly pointed out, the basic networking knowledge is still required even to implement other vendors' products. I doubt the CCIE will lose its value any time soon, but we just might see a deluge of CCNAs CCNPs bred on the ExamCrams, Transcenders Bosons. (I'm yet to determine how many of the people on this newsgroup have/have not used Boson tests... :-) Bharat Suneja "Mohamed Heeba" [EMAIL PROTECTED] wrote in message 91B200CBBEC3D111992A00805F31E6CB8807A3@MINAMAIL">news:91B200CBBEC3D111992A00805F31E6CB8807A3@MINAMAIL... so wat do u think the value of Cisco Certificates in the market , how long time this value is going to retain its bright ?? -Original Message- From: Andy Walden [SMTP:[EMAIL PROTECTED]] Sent: Monday, December 11, 2000 5:34 AM To: Mohamed Heeba Subject: Re: eXtreme and Cisco They won't die, but they are loosing a ton of market share. Juniper is really kicking them hard on the router side (7xxx-12xxx). Foundry and Extreme are kicking them hard on the enterprise side (5xxx-6xxx). At some point its all going to add up and be very painful for Cisco. That is the price of being the big boy in town. They are slow and strapped down with a huge existing customer based and bloated buggy IOS where the other manufacturers don't have that problem. andy On Mon, 11 Dec 2000, Mohamed Heeba wrote: hi guys just coming now from extreme presentation .looks like they have much more stronger products than cisco (in giga swtiches of course )do u think guys that Cisco is going to die because of small focused companies like extreme and jinper ??? if anyone feel interested ..we would like to discuss this Mohamed _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report
Re: BGP Regexp and filter question
Hi, Actually, you can use a single as-path accesslist statement to do the same thing. (AS1 with it's immediate surrounding ASes only). ip as-path access-list 1 permit ^1_[0-9]*$ At 07:27 PM 12/6/00 +0900, Jaeheon Yoo wrote: Hi, In my humble opinion, how about this one? Let me suppose your provider's AS number is 1: ip as-path access-list 4 permit ^1 [0-9]+$ ip as-path access-list 4 permit ^1$ You can also check threads "Help about BGP regular expression". and "Internet Routing Architecture" pp. 370~378 On 6 Dec 2000 02:07:52 -0500, [EMAIL PROTECTED] (John Neiberger) wrote: I'm in a multihoming situation where, so far, one provider is telling me they can only send the full routing table without some special arrangements. This sounds like a load of bullhockey, but that's what they're saying. So, here's the question... I only want to receive from both ISPs their routes and their customer routes. Then, I'll have a default route to the better ISP with a backup default to the second ISP. Is there a way to filter out the routes I don't want using regular expressions? I couldn't figure out how to accept an ISP's routes plus their customer routes while not accepting everything else. One ISP tags those routes allowing me to filter by community attribute, but the other is playing dumb. (The dumb one is Sprint, and it seems they are being a pain just because they can.) It's late, my brain is toast, and I'm tired of thinking about it. Regular expressions give me a headeache, anyway. Any ideas on how to do this? Many thanks as always, John ___ Tired of slow Internet? Get @Home Broadband Internet http://www.home.com/xinbox/signup.html _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BSCN questions --need help
Q.38 the answer should be: C. It can be used, to specify the network number and subnet mask of the routes. When using extended accesslist to do route filtering, the list will permit those route(s) which is/are *exactly match* the number of network prefix bit. At 02:08 PM 12/5/00 +0800, you wrote: Q.9 Ans should be C:Nonbroadcast multiaccess (NBMA) or E:Point-to-multipoint Ans C is fully meshed n/w and Ans E is for partially meshed n/w Q.10Ans C : DRs generated n/w link status and flood within the area. Q.13Ans C : Agree Q.27I think Ans C unless you want to change the physical BW Q.29I think Ans B Q.38. Ans D. The meaning of extended Access List Use in a Distribute List is different. The source parameters of the extended access list are used to indicate the address of the network whose updates are to be permitted or denied. The destination parameters of the extended access list are used to indicate the subnet mask of that network. Rgds, Sam -Original Message- From: Mahesh Gupta [SMTP:[EMAIL PROTECTED]] Sent: Monday, December 04, 2000 5:54 PM To: [EMAIL PROTECTED] Subject: BSCN questions --need help Hi, Attached are some of the BSCN questions which are creating lot doubts in my mind. I found these questions on one of the web site while preparing for BSCN exam. Please help me in understanding them as web site's evaluation said that my answers were wrong. Please spare some time for these questions.. if possible today... Thanks a lot. Regards, Mahesh Here are the questions with my answers :- Question 9 of 40. Which OSPF mode of operation is unot/u supported over NBMA topologies on a Cisco router? A. Broadcast B. Nonbroadcast point-to-point C. Nonbroadcast multi-access D. Point-to-point E. Point-to-multipoint My answer :- E as it is RPC mode and is not supported in some scenarios e.g. IP over ATM. Here I tried with option B as well but that was also wrong. Question 10 of 40. What generates an OSPF type-2 LSA? A. ABRs B. ASBRs C. DRs D. BDRs E. Each router for each area to which it belongs My answer :- C as Type 2 LSA's are Link LSA's. Question 13 of 40. Given the following configuration: outer ospf 20 network 10.3.3.2 0.0.0.0 area 0 network 10.4.4.1 0.0.0.0 area 3 network 10.5.0.0 0.0.255.255 area 3 area 0 range 10.3.0.0 255.255.0.0 area 3 range 10.4.4.0 255.255.255.0 area 3 range 10.5.0.0 255.255.0.0 Which statement about the difference between the effects of line 6 and the effects of line 7 is true? A. Line 6 advertises a single subnet into area 3 while line 7 advertises all subnets into area 3 B. Line 6 generates a host advertisement while line 7 generates a subnet advertisement C. Line 6 creates a more specific entry in the routing table of a router belonging to area 3 than does line 7 D. Line 6 advertises a single subnet into area 0 while line 7 advertises all subnets into area 0 My answer :-C seems to most logical... Question 27 of 40. Which of the following best completes the following statement? When configuring EIGRP for WAN interfaces, the BANDWIDTH statement is _. A. required for Frame Relay only B. required for subinterfaces only C. not required D. only used for multipoint circuits My answer :- no clue as very generic question guess was A or D but both were wrong. I thought A becasue specially in framerelay multipoint networks we put bandwidth but not necessarily only on subinterfaces. We may want to use the bandwidth command directly on a interface so that we can change the default value of T1 (1.544MB). Question 29 of 40. When using Enhanced IGRP in large scalable networks, why is additional EIGRP configuration required? A. To be hierarchical B. To adjust only WAN bandwidth because EIGRP is preconfigured (Plug and Play) C. To be monitored by the administrator D. To create manually entered summary routes My answer :- I tried A and D but both were wrong. any clue Question 37 of 40. Which is unot/u a benefit of manual route summarization in EIGRP networks? A. Smaller routing tables B. Boundaries for query packets C. More rapid convergence D. A route to the null interface My answer :- C becasue if we limit query boundry, rapid concergence will automatically happen ?? Question 38 of 40. Which statement about an extended IP access list is true when configuring a distribute-list to filter BGP route advertisements on a Cisco router? A. It cannot be used; only standard IP access lists can be configured B. It can be used, to specify the source and destination IP address of the routes C. It can be used, to specify the network number and subnet mask of the routes D.
