Specific BGP Question [7:58428]
Hello all, Long time lurker, first time poster. I have a router that is multi-homed between 16631 and 701. I have a new client who is buying transit from us. They are multi-homed to us and 1239. A business decision was made to policy route their traffic out 16631. As a result I will only publish 16631 routes to them. However, if 16631 goes away, I want to be able to push the 701 routes to them. Injecting a default wouldn't be very effective here since 1239 will most likely have a more specific route! So Conditional Adv to the rescue. However..I have a few questions I am unsure about and I don't have a lab to try it out on. In this config: router bgp nei New_Client remote-as Client_AS nei New_Client filter-list 4 in nei New_Client filter-list 3 out ip as path access-list 3 permit .* ip as-path access-list 4 permit ^Client_AS$ so far so good I want to add this... nei New_Client advertise-map MAP1 non-exist-map MAP2 route-map MAP1 permit 10 match as-path 5 route-map MAP2 permit 10 match as-path 6 ip as-path access-list 5 ^$ _16631_ ip as-path access-list 6 ^$ _701_ SO NOW THE QUESTIONS!!! 1) What is the order of operation for the advertisement out? Will the Filter-list showing all routes cancel any effect of the route-map? 2) Are the MAP1 and MAP2 route maps valid in this config because they use as-path? The config's I could find as example were based on Prefix. I made up the part about using the as-path, but it seems logical (boy, I wish I had a couple extra routers!) 3) Is there a better way to go about this! Thanks in advance. And thanks to everybody who posts. I have taken away a lot from this mailing-list! Jim Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58428&t=58428 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Collision [7:58389]
Today, We are put 3660 router to their end, having Fastethernet card, and connected to their switch. They change their switch port as following: interface FastEthernet0/14 load-interval 30 duplex full so far, after observe serveral hours, there is no collision as well as not error message in our router. So, what's wrong? Is the fastethernet is better? or previous setting that I have is wrong? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58427&t=58389 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: configure spanning tree mode [7:58365]
What is your current configuration? Could you paste here? So that we could take a look. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58426&t=58365 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Arp table - very strange [7:58404]
I know that this is the default value in cisco 2950. The following is my Q: >Actually from my knowledge, the arp table should contains only local >arp table. But I find that there are some external address on my arp >table. WHY? Really not understanding? Is my config for VLAN is >wrong? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58425&t=58404 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: can't ping the Sc0 interface ip address [7:58383]
Thanks for your help. I found the problem. I'd put the Sc0 into different vlan. ;o). Sorry for trouble you. After join the same vlan, it works. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58424&t=58383 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
rate-limit question [7:58423]
For rate-limit, is there a default "exceed-action" ? I have been looking in the documents and all of the configs I seem to find all have the "exceed-action drop", what I am wondering is what happens if I leave the exceed-action command off of the statement? Do the packets that don't conform still go through unchanged, or do they get dropped? Thanks for the help. Bill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58423&t=58423 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Regarding Router rental business? [7:58422]
Hi guys: I and my freind just got tones of Cisco equipment, so now we not sure to sale them or start an online lab business. so I just want to do a quick survey here . 1.how many of you guys here would be interested paying for lab time ? 2.how much would u willing to pay for the lab time. (e.g $5 hour or $50 per days) 3. Do you perfer do your lab exercise online or in the actual lab ? 4.What sort of equipment do most perfer to work on? so if you guys can gave me some idea about the current market. that will be greatly apperciated. also for those of u who do joint the survey, there will be a special discount for u if we do decide to go ahead with this business. you can send reply to news group or send enquiry to [EMAIL PROTECTED] thanks you very much for reading. best regard Mic Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58422&t=58422 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FXO ports to connect two PBX's [7:58410]
If you have FXS ports on the PBX, then the answer is yes; but as far as I know, you will either have FXO or E&M ports on the PBX, which means you need FXS ports on the Routers for the FXO "Cross-Connect", or E&M ports to cross-connect to the E&M ports on the PBX... don't quote me on the E&M ports though... it's been quite a while since I looked into E&M configurations... :) Of course, once you put the FXS ports on the Routers, you'll need to develop a dial-plan for routing between the two routers over the FR link(s). Good Luck! -Mark -Original Message- From: neil K. [mailto:[EMAIL PROTECTED]] Sent: Monday, December 02, 2002 1:39 PM To: [EMAIL PROTECTED] Subject: FXO ports to connect two PBX's [7:58410] Hi All, Can we use FXO ports in routers to connect two locations with PBX's. I have PBX at locaton "A", and a PBX and location "B". I want to run VoIP between the two locations over Frame Relay link. Can I use FXO cards in the Router on Location "A" and FXO on the router at location "B" and have VoIP run between the sites. The setup would look like this PBX to FXO --Frame Relay FXO to PBX. Any help will be highly appreciated. Thanks, Neil K. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58421&t=58410 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: configure spanning tree mode [7:58365]
yes... cat switch os, 6509, 4000, 5000 # set spantree enable all cat switch 2924, 3524, etc spanning tree is on by default for all ports (config)# no spanningtree The above command should turn it off Larry puro prasad wrote: >anyone, any info!!! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58417&t=58365 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: configure spanning tree mode [7:58365]
anyone, any info!!! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58415&t=58365 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Question on CCIE lab equipment? [7:58414]
Does anyone know the current number of ATM, Ethernet, Serial, Token, FXS, FXO, etc, that are in the current R&S Lab? Even though the Token Ring switching was removed from the lab, are there still Token Ring interfaces in the Lab? Are there really FXS and FXO interfaces in the lab? Just trying to get some insight on the possible scenarios the lab might present based on the number of each interface type. TIA, Jason Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58414&t=58414 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Home lab setup FRAME SWITCH [7:58204]
Don't you mean a 4500 w/ a 4 Port Serial works great? The 4000 doesn't support the NP-4T only the NP-2T. Jarett ""Larry Letterman"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > a 4000 with a 4 port serial card works great... > > Symon Thurlow wrote: > > >What about a 4000/4500 with 2x NP4T? They are reasonably priced. > > > >-Original Message- > >From: Elijah Savage III [mailto:[EMAIL PROTECTED]] > >Sent: 27 November 2002 18:25 > >To: [EMAIL PROTECTED] > >Subject: Home lab setup FRAME SWITCH [7:58204] > > > > > >Here is my lab setup there is one thing I think I am in desperate need > >of and that is a frame switch I do not need the 3550 we are deploying > >them at work and have access to them and also 5500's with the > >lightstream equipment. After getting this lab together of course I have > >spent some bucks as you can see below, but for the LABS like from NLI > >and some of the others will a 2521 serve as a frame switch to do these > >labs or do a I really need to fork over the bucks for a 2522, you just > >don't see ags+ on ebay much anymore. I would like to just buy a 2521 if > >it is sufficient and spend the rest of my allotted funds on purchasing > >the labs. Or is there someone out there wanting to sell a ags+ or some > >other router as a frame switch. > > > >3 2501 > >1 2503 isdn > >1 2611 > >1 2621 > >1 2509 > >1 1605 with wic 1T > >1 804 isdn > >1900 enterprise > >2924 enterprise Just got this one yesterday > >Pix501 > >Suse8.1 LinuxPC > >Redhat8.0PC > > > >Elijah > >http://www.digitalrage.org > >Your one stop for Technical News > >and HowTo's > >= > > > > This email has been content filtered and > > subject to spam filtering. If you consider > > this email is unsolicited please forward > > the email to [EMAIL PROTECTED] and > > request that the sender's domain be > > blocked from sending any further emails. > > > >= Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58409&t=58204 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: QOS on 40003 [7:58412]
> I am configuring QOS for Video-Conference on my CAT 4003. > I would like to know what IP precedence numbers I can use to classify the > video traffic. http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuratio n_guide_book09186a00800c5e31.html CCO is your friend. BJ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58413&t=58412 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
QOS on 40003 [7:58412]
I am configuring QOS for Video-Conference on my CAT 4003. I would like to know what IP precedence numbers I can use to classify the video traffic. _ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58412&t=58412 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE written [7:58400]
It is very difficult, although the passing score is low ( less than 60 %) but you got to work really hard to pass it. neil ""saj"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, > Just want to know whether anyone has attempted CCIE > theory and lab recently.Whether there are any > changes.How hard is the CCIE written? > Thanks. > Saj > > __ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58411&t=58400 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FXO ports to connect two PBX's [7:58410]
Hi All, Can we use FXO ports in routers to connect two locations with PBX's. I have PBX at locaton "A", and a PBX and location "B". I want to run VoIP between the two locations over Frame Relay link. Can I use FXO cards in the Router on Location "A" and FXO on the router at location "B" and have VoIP run between the sites. The setup would look like this PBX to FXO --Frame Relay FXO to PBX. Any help will be highly appreciated. Thanks, Neil K. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58410&t=58410 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Monitoring SPF algorithm [7:58408]
Is there a command that shows which router initiated a SPF recalculation? I am looking for a command like 'show spantree statistics', that shows which device originated a BPDU Topology Change Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58408&t=58408 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Arp table - very strange [7:58404]
I dont see what your issue is. you have ports in vlan 1 and ports in vlan 2... If you are questioning the vlan 100X entries, thats the default vlans in cisco switches that are reserved for other things like fddi/TRthey are always in the vlan arp table. Cliff Cliff wrote: >Dear all, > >For my company, there are two equipment rooms, one is in upstair ad one is >in downstair. So we are using fiber connecting these two floor equipments by >using Cisco 2950 (which having 2 Fiber port) in both upstair and downstair. > >In cisco 2950, there are 24 ports, for some reason, I need to set 12 ports >for VLAN1 (IP address A.B.C.0/24) andb 12 ports for VLAN2(E.F.G.0/24) in >upstair cisco 2950. Note that port 25 is also VLAN1 and port 26 is VLAN2. >The same applied to downstair cisco 2950 (Now we have two fibers connecting >to upstair and downstair cisco 2950). The result why connected like this is >we want to seperate the traffic for VLAN1 and VLAN2. > >The config is like this > >upstair and downstair cisco 2950 switch config >== >Port 1 to port 12: > >under interface FastEthernet0/1 to 0/12 - no special config (default) > >Port 13 to port 24: > >under interface FastEthernet0/13 to 0/24 - adding "switchport access vlan 2" > >Assign ip address for upstair cisco 2950: > >interface VLAN1 > ip address A.B.C.1 255.255.255.0 > >Assign ip address for downstair cisco 2950: > >interface VLAN1 > ip address A.B.C.2 255.255.255.0 > >But when I issue a command show arp, I see very strange situation. > >Actually from my knowledge, the arp table should contains only local arp >table. But I find that there are some external address on my arp table. WHY? >Really not understanding? Is my config for VLAN is wrong? > >Also when I issue a command "show vlan brief", I get the following output: > >VLAN Name StatusPorts > - -- >1default activeFa0/1,Fa0/2, ... ,Fa0/12,Fa0/25 >2VLAN0002activeFa0/13,Fa0/14, ... , Fa0/24, Fa0/26 >1002 fddi-defaultactive >1003 token-ring-default active >1004 fddinet-default active >1005 trnet-default active > >which I believe that I am not setting wrong for VLAN. Any comment or >suggestion? Thx! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58407&t=58404 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE written [7:58400]
The written is very hard. Take a look at the www.groupstudy.com archives and you'll find a lot of information about the proper books and prep materials to start studying from. saj wrote: Hi, Just want to know whether anyone has attempted CCIE theory and lab recently.Whether there are any changes.How hard is the CCIE written? Thanks. Saj __ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now - Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58406&t=58400 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Arp table - very strange [7:58404]
Dear all, For my company, there are two equipment rooms, one is in upstair ad one is in downstair. So we are using fiber connecting these two floor equipments by using Cisco 2950 (which having 2 Fiber port) in both upstair and downstair. In cisco 2950, there are 24 ports, for some reason, I need to set 12 ports for VLAN1 (IP address A.B.C.0/24) andb 12 ports for VLAN2(E.F.G.0/24) in upstair cisco 2950. Note that port 25 is also VLAN1 and port 26 is VLAN2. The same applied to downstair cisco 2950 (Now we have two fibers connecting to upstair and downstair cisco 2950). The result why connected like this is we want to seperate the traffic for VLAN1 and VLAN2. The config is like this upstair and downstair cisco 2950 switch config == Port 1 to port 12: under interface FastEthernet0/1 to 0/12 - no special config (default) Port 13 to port 24: under interface FastEthernet0/13 to 0/24 - adding "switchport access vlan 2" Assign ip address for upstair cisco 2950: interface VLAN1 ip address A.B.C.1 255.255.255.0 Assign ip address for downstair cisco 2950: interface VLAN1 ip address A.B.C.2 255.255.255.0 But when I issue a command show arp, I see very strange situation. Actually from my knowledge, the arp table should contains only local arp table. But I find that there are some external address on my arp table. WHY? Really not understanding? Is my config for VLAN is wrong? Also when I issue a command "show vlan brief", I get the following output: VLAN Name StatusPorts - -- 1default activeFa0/1,Fa0/2, ... ,Fa0/12,Fa0/25 2VLAN0002activeFa0/13,Fa0/14, ... , Fa0/24, Fa0/26 1002 fddi-defaultactive 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active which I believe that I am not setting wrong for VLAN. Any comment or suggestion? Thx! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58404&t=58404 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: mutliple RIP processes [7:58392]
At 4:09 PM + 12/2/02, p b wrote: >Thanks. I had expected that "router bgp ABC" and "router bgp XYZ" >did in fact start two processes. I hadn't tried applying a >second "router bgp XYZ" to a config to confirm this worked. But >as you point out, this isn't allowed (supported) and the router >reports the error: > >router(config)#router bgp 1234 >BGP is already running; AS is 123 > >I'm surprised that multiple IS-IS processes are not supported (but >I don't know diddley about IS-IS so...) Any thoughts on why >cisco decided to support multiple OSPF processes (or why other >vendors did not)? There's a lot of things unclear about Cisco's early OSPF. The first versions really didn't work, until a major rewrite about IOS 9.1(4). I don't know if Derek Yeung took it over then or later, but, until he left Cisco, was the main OSPF programmer. I don't know if the multiple processes were one of the original ideas, possibly to preserve some of the pseudo-area feel of IGRP. ISIS always worked, but it has a special advantage: almost every major implementation (early NSFNET and other research implementations, Cisco, and Juniper) were all designed and mostly coded by Dave Katz. These are just guesses. It is worth looking at putting a Zebra/LINUX box or two in your lab for extensive route generation, including routes with errors. Probably cheaper than non-EOL routers. Zebra is free. > > > > >Howard C. Berkowitz wrote: >> >> At 12:34 PM + 12/2/02, bergenpeak wrote: >> >Anyone know why one can run only a single RIP process on a >> cisco >> >router? >> > >> >Thanks >> > >> >> I can't give you a precise reason, but some general comments. >> >> RIP was never intended for large systems where you might be >> able to >> make use of multiple processes. You could argue that having >> multiple >> IGRP processes was a way to add a primitive area structure, and >> then >> EIGRP needed compatibility. >> >> Even among the more advanced protocols, the multiple process >> per >> router has rather little applicability. OSPF is actually the >> exception in allowing multiple processes; BGP and ISIS do not. >> >> AFAIK, no vendor other than Cisco ever implemented multiple >> OSPF >> processes. Wellfleet/Bay/Nortel definitely did not. >> >> For things like performance benchmarking for the IETF and such, >> we >> most typically use Zebra or GateD UNIX boxes to generate >> traffic, or >> purpose-built high-speed testers. The high-speed testers >> typically >> don't really understand the protocol, but are playing back >> prerecorded traffic and responding to a very small set of >> messages. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58405&t=58392 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Re: Test for MCast...Any?? [7:58269]
BJ, That's a great idea actually. I've never tested it and I don't have a PC to try it on right now, but I think it's very likely to compile on Cygwin. Like I said, I can't try it, but if you do please let me know. On Mon, 2002-12-02 at 08:50, B.J. Wilson wrote: > Mike - > > By any chance have you tested running your program on a Windows PC using > Cygwin? I'm not a Linux person (yet...), and I figured this might be a > passable way for PC-based users to use MINT. > > BJ > > > ---Original Message--- > From: Mike Bernico > Sent: 12/02/02 09:30 AM > To: [EMAIL PROTECTED] > Subject: Re: Test for MCast...Any?? [7:58269] > > > If you'd just like to send some test multicast traffic and see if your > receiving it elsewhere, you can try my multicast testing program at > http://mc-mint.sourceforge.net It's free under the GPL. I very much > doubt it will run under windows though, you probably would want to use > Linux with it. In my lab I used two old 300 MHz PCs to generate > traffic with it and I've been able to fill some pretty big pipes. > > Mike > > > On Thu, 2002-11-28 at 21:18, Cisco Nuts wrote: > > Hello,Is there a way to test/practise MCast configs. on the Internet? > > I > > have a cable-modem connected to a 2514 router and would like to > > configure > > MCast on it as well as my Lab routers behind that for PIM-SM. I have a > > laptop connected as a client to one of the routers. How can I verify > > that > > MCast is working on the laptop? I mean, is there a freeware/shareware > > application that I can install on my laptop to test (since I cannot > > obviously have IP/TV client on my laptop).Or is there any other way to > > do > > it in the Lab routers themselves.Any basic configs/examples provided > > is > > greatfully appreciated.Thank you for your help.Sincerely,CN > > > > > > > > MSN 8 with e-mail virus protection service: 2 months FREE* Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58403&t=58269 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: can't ping the Sc0 interface ip address [7:58383]
Kevin GU wrote: > > Hi, > I have a C4006 in the Local LAN already, all the while it is > working fine. I need more ports for user device, so add one > more c5009 switch. > I've connected a C5009 and a C4006 switches with a cross cable > on port 3/1. Set ip address 53.245.35.6/24 for C4006's Sc0 > interface. Set ip address 53.245.35.3/24 for C5009's Sc0 > interface. But I can't ping each other. I set the port to > trunk. so the users connected to C5009 are able to access the > whole network. But I still can't ping the Sc0 management IP > address. > Any one can help me? Did you set the default gateway? I don't know if a switch will generate the ICMP echo request without it. I realize that we're talking layer two here between the switches, but I seem to recall that a gateway needs to be set regardless. I'll experiment on a 6509 later today. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58402&t=58383 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: mutliple RIP processes [7:58392]
Thanks. I had expected that "router bgp ABC" and "router bgp XYZ" did in fact start two processes. I hadn't tried applying a second "router bgp XYZ" to a config to confirm this worked. But as you point out, this isn't allowed (supported) and the router reports the error: router(config)#router bgp 1234 BGP is already running; AS is 123 I'm surprised that multiple IS-IS processes are not supported (but I don't know diddley about IS-IS so...) Any thoughts on why cisco decided to support multiple OSPF processes (or why other vendors did not)? Howard C. Berkowitz wrote: > > At 12:34 PM + 12/2/02, bergenpeak wrote: > >Anyone know why one can run only a single RIP process on a > cisco > >router? > > > >Thanks > > > > I can't give you a precise reason, but some general comments. > > RIP was never intended for large systems where you might be > able to > make use of multiple processes. You could argue that having > multiple > IGRP processes was a way to add a primitive area structure, and > then > EIGRP needed compatibility. > > Even among the more advanced protocols, the multiple process > per > router has rather little applicability. OSPF is actually the > exception in allowing multiple processes; BGP and ISIS do not. > > AFAIK, no vendor other than Cisco ever implemented multiple > OSPF > processes. Wellfleet/Bay/Nortel definitely did not. > > For things like performance benchmarking for the IETF and such, > we > most typically use Zebra or GateD UNIX boxes to generate > traffic, or > purpose-built high-speed testers. The high-speed testers > typically > don't really understand the protocol, but are playing back > prerecorded traffic and responding to a very small set of > messages. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58401&t=58392 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE written [7:58400]
Hi, Just want to know whether anyone has attempted CCIE theory and lab recently.Whether there are any changes.How hard is the CCIE written? Thanks. Saj __ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58400&t=58400 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: RAS problem [7:58398]
Why dont you go for access-lists permiting only server addresses to access? regards Silju Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58399&t=58398 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RAS problem [7:58398]
Hi, There is a Mobile service provider company. The company has few application engineer who make billing ,, They use company's server to generate the certain reports. Now these engineer are given a username and password and are authenticated using the RAS. This RAS is also used to authenticate user to access company routers. Now these user can access company routers. But Now company realised that this should not happen. Now tell me how can they block these engineers from using routers but at the same time allow them to access the servers.Is there any solution?? Pls provide any idea to fix the problem or any pointers in this regard will be of great help.!!! Pls reply ASAP Vinay DISCLAIMER: This message is proprietary to Hughes Software Systems Limited (HSS) and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. HSS accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58398&t=58398 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF ABR question [7:57990]
At 1:44 PM + 12/2/02, Peter van Oene wrote: > >A general concept in routing is to always prefer information from the >most accurate source. In Link State routing, a given router always has >the most accurate information about the area itself, and thus will >always prefer information derived from there. This mechanism also >prevents loops. > > >Issues like these often occur in OSPF. Pat Murphy, in his NSSA drafts, >refers to this phenomenon as "hijacking". It is good to keep in mind >that this only produces sub-optimalities, not routing instabilities. >However, all routing impementations can be prone to sub-optimal routing >if you do not optimally design the topology. BGP confederations often >suffer from this as the length of the AS-Confed-Sequence is not used in >the BGP path selection algorithm. > > > >> Given the topology of area 0, little might be possible in avoiding > > the sub-optimal routing > > > >As hopefully I've pointed out, there really isn't a way in OSPF to iron >out all the potential for sub-optimality that a given topology might >present. It is incumbent upon the designer to understand and design >around, or live with these issues. > > Good points, Peter. I think one real-world nuance that doesn't come through in most routing classes is that people often worry too much about suboptimal routing and too little about instability. With today's transmission technologies and router speeds, you can often solve the first by throwing bandwidth at the problem and "neutralizing" the suboptimality. Instability, however, can kill your network, and, if on the Internet, other networks. It's my impression that the CCIE test strategy overemphasizes optimality and underemphasizes stability. Certainly, some of the major reasons to use hierarchical redistribution, blackhole routes, minimizing information sent to routers, etc., are stability -- and these techniques are usually forbidden in the lab. Sometimes I wonder if there needs to be a book or seminar, "OK, now you are a CCIE. This is what you need to unlearn." ;-) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58397&t=57990 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Re: Test for MCast...Any?? [7:58269]
Mike - By any chance have you tested running your program on a Windows PC using Cygwin? I'm not a Linux person (yet...), and I figured this might be a passable way for PC-based users to use MINT. BJ ---Original Message--- From: Mike Bernico Sent: 12/02/02 09:30 AM To: [EMAIL PROTECTED] Subject: Re: Test for MCast...Any?? [7:58269] > If you'd just like to send some test multicast traffic and see if your receiving it elsewhere, you can try my multicast testing program at http://mc-mint.sourceforge.net It's free under the GPL. I very much doubt it will run under windows though, you probably would want to use Linux with it. In my lab I used two old 300 MHz PCs to generate traffic with it and I've been able to fill some pretty big pipes. Mike On Thu, 2002-11-28 at 21:18, Cisco Nuts wrote: > Hello,Is there a way to test/practise MCast configs. on the Internet? > I > have a cable-modem connected to a 2514 router and would like to > configure > MCast on it as well as my Lab routers behind that for PIM-SM. I have a > laptop connected as a client to one of the routers. How can I verify > that > MCast is working on the laptop? I mean, is there a freeware/shareware > application that I can install on my laptop to test (since I cannot > obviously have IP/TV client on my laptop).Or is there any other way to > do > it in the Lab routers themselves.Any basic configs/examples provided > is > greatfully appreciated.Thank you for your help.Sincerely,CN > > > > MSN 8 with e-mail virus protection service: 2 months FREE* Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58396&t=58269 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Monitoring Bandwidth on ATM PVP's [7:58263]
I've used MRTG on our BPXs. What type of ATM switch do you want to monitor? On Thu, 2002-11-28 at 20:38, Steve Watson wrote: > I use MRTG for my routers. Is there a similar tool that monitors cells > and bandwidth on an ATM Network? > > Steve Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58395&t=58263 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Test for MCast...Any?? [7:58269]
If you'd just like to send some test multicast traffic and see if your receiving it elsewhere, you can try my multicast testing program at http://mc-mint.sourceforge.net It's free under the GPL. I very much doubt it will run under windows though, you probably would want to use Linux with it. In my lab I used two old 300 MHz PCs to generate traffic with it and I've been able to fill some pretty big pipes. Mike On Thu, 2002-11-28 at 21:18, Cisco Nuts wrote: > Hello,Is there a way to test/practise MCast configs. on the Internet? > I > have a cable-modem connected to a 2514 router and would like to > configure > MCast on it as well as my Lab routers behind that for PIM-SM. I have a > laptop connected as a client to one of the routers. How can I verify > that > MCast is working on the laptop? I mean, is there a freeware/shareware > application that I can install on my laptop to test (since I cannot > obviously have IP/TV client on my laptop).Or is there any other way to > do > it in the Lab routers themselves.Any basic configs/examples provided > is > greatfully appreciated.Thank you for your help.Sincerely,CN > > > > MSN 8 with e-mail virus protection service: 2 months FREE* Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58394&t=58269 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: mutliple RIP processes [7:58392]
At 12:34 PM + 12/2/02, bergenpeak wrote: >Anyone know why one can run only a single RIP process on a cisco >router? > >Thanks > I can't give you a precise reason, but some general comments. RIP was never intended for large systems where you might be able to make use of multiple processes. You could argue that having multiple IGRP processes was a way to add a primitive area structure, and then EIGRP needed compatibility. Even among the more advanced protocols, the multiple process per router has rather little applicability. OSPF is actually the exception in allowing multiple processes; BGP and ISIS do not. AFAIK, no vendor other than Cisco ever implemented multiple OSPF processes. Wellfleet/Bay/Nortel definitely did not. For things like performance benchmarking for the IETF and such, we most typically use Zebra or GateD UNIX boxes to generate traffic, or purpose-built high-speed testers. The high-speed testers typically don't really understand the protocol, but are playing back prerecorded traffic and responding to a very small set of messages. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58393&t=58392 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF ABR question [7:57990]
On Sun, 2002-12-01 at 12:18, p b wrote: > Peter van Oene wrote: > > > > Non intra-area ASBRs are found via type 4 LSAs (ASBR Summary) > > which > > follow the same rules as type 3 summaries and thus prevent non > > zero > > areas from providing transit toward ASBRs (that is where the > > non zero > > area contains neither the source nor ASBR) > > You're right. I went back and looked at my lab config. I > had had a link configured as non-0 when I thought it was in > area 0. Thus the incorrect conclusion regarding externals and > non-0 areas for transit. > > It's interesting that OSPF will, apparently, always prefer > an OSPF intra-area path over an inter-area path to a destination, > even when the inter-area path is less cost. This has implications > for certain area 0 topologies (ie a ring built from p2p links) > and thus can result in sub-optimal paths for certain source > routers and destinations. A general concept in routing is to always prefer information from the most accurate source. In Link State routing, a given router always has the most accurate information about the area itself, and thus will always prefer information derived from there. This mechanism also prevents loops. > > This would happen when a router, R, in area 0 is trying to reach > a destination, D in a non-0 area, and there are two ABRs. ABR_1 > and ABR_2 will install intra-area routes to the destination D. > ABR_1 and ABR_2 will advertise into area 0 their costs to D > via type 3 LSAs. Router R will compute its cost to D through > ABR_1 and ABR_2. It might determine that ABR_2 is the prefered > ABR through which R should route traffic to D. However, if the > path between R and ABR_2 causes the traffic to go through ABR_1, > traffic from R to D will enter the non-0 area at ABR_1 (since > OSPF prefers intra-area paths over inter-area path, even if more > expensive; ABR_1 thus installs the intra-area routes). Thus, > traffic from R->D takes a sub-optimal path. Note this behvaior > has nothing to do with summarization. Issues like these often occur in OSPF. Pat Murphy, in his NSSA drafts, refers to this phenomenon as "hijacking". It is good to keep in mind that this only produces sub-optimalities, not routing instabilities. However, all routing impementations can be prone to sub-optimal routing if you do not optimally design the topology. BGP confederations often suffer from this as the length of the AS-Confed-Sequence is not used in the BGP path selection algorithm. > Given the topology of area 0, little might be possible in avoiding > the sub-optimal routing For ring topologies, I often mux the link between ABR_1 and ABR_2 to provide two logical links. If these are in a POP together, they likely run GigE or something similar in which case one can simply use 802.1q over the link and present an Area 0 link along with a non backbone link. This helps in the enterprise case where summarization is occuring, and also helps provide more optimal routing. The only cost is in IP addressing and a little more complexity. Should POS be in use, frame works well here in the same fashion. . However, R would know, when it computes > its tree to D, that traffic will flow through ABR_1 to get to > ABR_2. Looking at the cost to D from router R (via show ip route) > it shows the cost as if the path enters the non-0 area at ABR_2. > However, this isn't the path traffic will follow. > Now, R has the information to make the determination that traffic > will flow into the non-0 area at ABR_1. Why would R not show the > cost to D via ABR_1 as this is the path that traffic takes? Actually R doesn't have this information. The SPF algorithm is used within the area to find the minimal cost path to each node in the area. For an inter area destination, the already known cost to an ABR is summed with the cost provided in the LSA to create an Inter Area Cost (IAC) to the given destination, the least of which (assuming there are more than one for a given destination) is chosen and used for next-hop selection. At no point does the router calculate an SPF to the inter-area destination specifically. It also doesn't look deeply at the composite nodes along a given path to determine whether or not they happen to be ABRs themselves, and certainly not ABRs which happen to provide transit to a particular area for which they might also be deriving IACs to in another process. Furthermore, they don't actually even know which areas a given ABR provides transit to as this information isn't relevant nor contained in a type3/4 LSA. As hopefully I've pointed out, there really isn't a way in OSPF to iron out all the potential for sub-optimality that a given topology might present. It is incumbent upon the designer to understand and architect around, or live with these issues. > Thanks > > > > > > > > R2->ABR_1->R5->ABR_2->R3 > > > > > > > > > > > > > > > > > > > > The > > > > > result with an ABR using non-zero summa
Re: Duplicate messages from GroupStudy Listserve [7:40077]
I have the same problem when I use MS Outlook and filters. I had multiple filters configured to move email from certain senders into folders. The Outlook was copying the email even though I configured it to only move the item. If you are using filters in your email program try disabling them to see if the problem is in your client. If you are using Outlook, you might try Netscape communicator as a test. Brian Zeitz wrote: > Just ask the Moderator to use some Hold down Timers... > > -Original Message- > From: Mark Odette II [mailto:[EMAIL PROTECTED]] > Sent: Monday, April 01, 2002 4:28 PM > To: [EMAIL PROTECTED] > Subject: RE: Duplicate messages from GroupStudy Listserve [7:40077] > > Perhaps your E-mail Client is having an issue, or your firewall is > experiencing an issue similar to the issue reported with the Ciso PIX > Firewal and SMTP Fixup. Just a couple of ideas to look at. > > I occasionally experience a duplicate message from the GroupStudy > server, > but I think it may have something to do with duplicated submissions in > the > Moderators Que... of which they don't realize until its all said and > done. > > Again, this only happens occasionally... not with every single message. > > HTHs > -Mark > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Andy Barkl > Sent: Monday, April 01, 2002 1:40 PM > To: [EMAIL PROTECTED] > Subject: Duplicate messages from GroupStudy Listserve [7:40077] > > No matter how many times I subscribe, unsubscribe, and re-subscribe, I > can't get the GroupStudy Listserve server to send me only 1 copy of all > messages, it always sends me at least 2. > > Has anyone who has recently subscribed or re-subscribed having the same > problem? > > I don't want to bother the list moderator or Paul until I can confirm > the problem is not on my end. > > Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58375&t=40077 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
mutliple RIP processes [7:58392]
Anyone know why one can run only a single RIP process on a cisco router? Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58392&t=58392 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
GK: RRJ undefinedreason [7:58391]
Dear group, I'm not in able to register my H323 terminal. >From the debug h225asn1 I receive rrj message: undefined reason. Anybody can help me in troubleshooting it? The problem seems related to gatekeeper zone. Teresa Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58391&t=58391 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Collision [7:58389]
Hi Cliff, Fastethernet wont cure the problem, you can still run that half duplex. What causes the collisions is running in half duplex mode. Try upping it to full duplex. What full duplex does is it disables the internal loopback device i.e. collision checking ussually if you are plugged into a switch you want it to run in full duplex mode. Half duplex would be bad when you forced the switch port to full duplex. They might have done that. It would also lead to those kind of errors. Try this and tell me if it helped :) Regards Gerhard -Original Message- From: Cliff Cliff [mailto:[EMAIL PROTECTED]] Sent: 02 December 2002 11:24 To: [EMAIL PROTECTED] Subject: Collision [7:58389] Dear all, Pls kindly help the following: Really I am not understand although it is simple. We colocate the router (2511) to our provider data center. Which having two ethernet interface. One connecting to date center internet and one is connecting to our own LAN (which is private ip address). So we do NAT in this router. BUt sometime, we find that the ping time to internet is abnormal and very slow. After enable the logging in our router. We find the following log: 3d01h: %QUICC-ETHER5-COLL:Unit0, excessive collisions, Retry limit 15 exceeded. We are sure that the cable is normal and our router also normal Our Data center connected to our router using cisco 2950 switch and having the following setting in their switch port: interface FastEthernet0/14 load-interval 30 duplex half speed 10 Anyway, it seems normal to me but the date center suggest us to using fastethernet in our router to connecting to their switch and will not having any collision. So I wonder why it is true or not? Also, why ethernet can't connect to Cisco 2950 switch and having collision? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58390&t=58389 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Collision [7:58389]
Dear all, Pls kindly help the following: Really I am not understand although it is simple. We colocate the router (2511) to our provider data center. Which having two ethernet interface. One connecting to date center internet and one is connecting to our own LAN (which is private ip address). So we do NAT in this router. BUt sometime, we find that the ping time to internet is abnormal and very slow. After enable the logging in our router. We find the following log: 3d01h: %QUICC-ETHER5-COLL:Unit0, excessive collisions, Retry limit 15 exceeded. We are sure that the cable is normal and our router also normal Our Data center connected to our router using cisco 2950 switch and having the following setting in their switch port: interface FastEthernet0/14 load-interval 30 duplex half speed 10 Anyway, it seems normal to me but the date center suggest us to using fastethernet in our router to connecting to their switch and will not having any collision. So I wonder why it is true or not? Also, why ethernet can't connect to Cisco 2950 switch and having collision? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58389&t=58389 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Passed Cisco IP Telephony [7:58386]
Congratulation Thangavel, and thank u for sharing with us. Best Regards, HATO >From: "THANGAVEL VISHNUKUMAR MUDALIAR" >Reply-To: "THANGAVEL VISHNUKUMAR MUDALIAR" >To: [EMAIL PROTECTED] >Subject: Passed Cisco IP Telephony [7:58386] >Date: Mon, 2 Dec 2002 06:30:46 GMT > >Hi Group, > >Today I passed the Cisco IP Telephony Exam.I used the cisco Press book by >David Lovell and I had a bad experience with this book.The cover page of >the >book is misleading as it says prepare for IP telephony Certification with >this >book. >To my experience this book is not sufficient for passing the exam as it >does >not cover all the topics probed in the exam. >There is PDF on IP telephony design guide on cisco's web site,I feel the >book >is a copy of that.The design guide has more than what is covered in this >book.I feel spending $60 on this book is not worth as same information you >can >find on >http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/network/. > >About the exam,It has 70 questions, passing score is 699 and have 2 hrs to >answer them.I used cisco site extensively for preparing for this exam. > > >Kind Regards/Thangavel V M >**Disclaimer > >Information contained in this E-MAIL being proprietary to Wipro Limited is >'privileged' and 'confidential' and intended for use only by the individual > or entity to which it is addressed. You are notified that any use, >copying >or dissemination of the information contained in the E-MAIL in any manner >whatsoever is strictly prohibited. > >*** _ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58388&t=58386 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]