RE: bri flapping with demand cirquit/igrp redistribution
Can somebody tell me how come CDP may bring the line up? As you know, it works only in layer 2 as said before. Your dialer-list works at layer 3 & 4 only. Did I miss something? :-( --- Ya Wen <[EMAIL PROTECTED]> wrote: > Try remove the "log" from the access-list 15 > associated with the route-map > stuff. Also, you do not need the summary-address > under OSPF. > > -Ya > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Patrick Murphy > Sent: Friday, March 23, 2001 5:04 PM > To: Leah Lynch; 'Jay Chandradas'; 'Chris Larson'; > 'Bob Boone'; > [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: bri flapping with demand cirquit/igrp > redistribution > > > Also check the BRI interface and see if you see > IPCDP, it should disapper > when you no cdp en! > > Patrick > > - Original Message - > From: "Leah Lynch" <[EMAIL PROTECTED]> > To: "'Jay Chandradas'" <[EMAIL PROTECTED]>; "'Chris > Larson'" > <[EMAIL PROTECTED]>; "'Bob Boone'" > <[EMAIL PROTECTED]>; > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Friday, March 23, 2001 7:45 PM > Subject: RE: bri flapping with demand cirquit/igrp > redistribution > > > > I think you normally disable CDP in dialup lines > for efficiency. > > > > Leah > > > > -Original Message- > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > > Jay Chandradas > > Sent: Friday, March 23, 2001 2:57 PM > > To: Chris Larson; Bob Boone; [EMAIL PROTECTED]; > > [EMAIL PROTECTED] > > Subject: Re: bri flapping with demand cirquit/igrp > redistribution > > > > > > > > > > I am not sure CDP will keep the line up ? And ur > interesting traffic is > > permit ip any any . I dont think CDP will keep the > line up. When u do a > > debug ip pack.. u can nvr see CDP.. CDP is layer > 2. > > > > my 0.02 > > > > - Original Message - > > From: "Chris Larson" <[EMAIL PROTECTED]> > > To: "Bob Boone" <[EMAIL PROTECTED]>; "Jay > Chandradas" > <[EMAIL PROTECTED]>; > > <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > > Sent: Friday, March 23, 2001 2:40 PM > > Subject: RE: bri flapping with demand cirquit/igrp > redistribution > > > > > > > Will CDP keep the line up? Turn off CDP. > > > > > > -Original Message- > > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > > > Bob Boone > > > Sent: Friday, March 16, 2001 5:30 PM > > > To: Jay Chandradas; [EMAIL PROTECTED]; > [EMAIL PROTECTED] > > > Subject: Re: bri flapping with demand > cirquit/igrp redistribution > > > > > > > > > Yes i do have passive BRI on IGRP, and also, the > way it is done now, it > > > restricts ALL networks, if you look at the > access-list 15 it has one > > > statement and then explisit deny all. > > > still not working. > > > > > > - Original Message - > > > From: "Jay Chandradas" <[EMAIL PROTECTED]> > > > To: "Netguy" <[EMAIL PROTECTED]>; > <[EMAIL PROTECTED]>; > > > <[EMAIL PROTECTED]> > > > Sent: Friday, March 16, 2001 12:22 PM > > > Subject: Re: bri flapping with demand > cirquit/igrp redistribution > > > > > > > > > > 1. DO u have a passive interface on bri0 under > router IGRP > > > > > > > > 2. I wud do this way !! when u r redisributing > into OSPG .. allow only > > the > > > > IGRP networks ( including the network conneted > with is running IGRP ) > > > > > > > > Jay > > > > > > > > when u r redistributing into > > > > - Original Message - > > > > From: "Netguy" <[EMAIL PROTECTED]> > > > > To: <[EMAIL PROTECTED]>; > <[EMAIL PROTECTED]> > > > > Sent: Friday, March 16, 2001 12:01 PM > > > > Subject: bri flapping with demand cirquit/igrp > redistribution > > > > > > > > > > > > > > Hello all you happy people. > > > > > > Router A has ospf/igrp mutual > redistribution and bri > > > > > > int dialing elsewhere with demand circuit. > it keeps > > > > > > flapping. > > > > > > i followed someone's advice and created a > route/map > > > > > > filter to filter out bri network from igrp > > > > > > redistributing back into ospf. > > > > > > what the hell am i doing wrong? i know its > a big > > > > > > thing > > > > > > that lots of people had problems with. > > > > > > here's the key configs: > > > > > > interface BRI0/0 > > > > > > ip address 173.5.8.1 255.255.255.252 > > > > > > encapsulation ppp > > > > > > ip ospf demand-circuit > > > > > > dialer idle-timeout 15 > > > > > > dialer map ip 173.5.8.2 name R5 broadcast > 8667007 > > > > > > dialer map ip 173.5.8.2 name R5 broadcast > 8667008 > > > > > > dialer load-threshold 128 outbound > > > > > > dialer-group 1 > > > > > > isdn switch-type basic-dms100 > > > > > > isdn spid1 9258667005 > > > > > > isdn spid2 9258667006 > > > > > > ppp authentication chap > > > > > > ppp chap hostname CCIE > > > > > > ppp multilink > > > > > > > > > > > > > > > > > > router ospf 1 > > > > > > log-adjacency-changes > > > > > > area 0 authentication message-digest > > > > > > area 0 range 173.5.1.0 255.255.255.0 > > > > > > summary-address 173.5.10.0 255.255.
RE: bri flapping with demand cirquit/igrp redistribution
Thanks to you all, --- "Connary, Julie Ann" <[EMAIL PROTECTED]> wrote: > an easier way to find the problem is to debug ospf > flooding and/or lsa > generation. Then you do not > have to go through the pain of waiting for the link > to be quiet for each > interface as you bring it up. > > Julie Ann > > At 02:31 PM 3/27/2001 -0600, Alan Basinger wrote: > >Your correct Z filter the bri subnet from > redistribution into IGRP and your > >LSA's should not continue to bring the link up. > > > >Alan > > > >-Original Message- > >From: Mask Of Zorro [mailto:[EMAIL PROTECTED]] > >Sent: Tuesday, March 27, 2001 2:32 PM > >To: [EMAIL PROTECTED]; > [EMAIL PROTECTED]; > >[EMAIL PROTECTED]; [EMAIL PROTECTED]; > [EMAIL PROTECTED]; > >[EMAIL PROTECTED]; [EMAIL PROTECTED]; > [EMAIL PROTECTED]; > >[EMAIL PROTECTED]; [EMAIL PROTECTED]; > [EMAIL PROTECTED]; > >[EMAIL PROTECTED] > >Subject: Re: bri flapping with demand cirquit/igrp > redistribution > > > > > >Redistribution brings it up. > > > >What happens is, the link is brought up and OSPF > forms an adjacency. Then, > >since it is a demand circuit, periodic LSA's are > squelched and OSPF routes > >associated with those LSA's do not age out of the > routing table. Then, the > >layer 2 portion of the link drops, since there is > no interesting traffic. > > > >Once the link drops, whatever protocol you are > redistributing into OSPF sees > >it's link drop, and changes its tables in > accordance with the topology > >change. This change gets redistributed into OSPF, > and OSPF floods LSA's out > >announcing the change. These LSA's bring up the > link while OSPF converges. > >Then, after a while, things are stable again, and > the link drops - and guess > >what? That's right! The whole thing starts > again... > > > >There are ways to stop it. > > > >Z > > >From: "George Zhang" > <[EMAIL PROTECTED]> > > >Reply-To: "George Zhang" > <[EMAIL PROTECTED]> > > >To: <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]>, > > ><[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]>, > > ><[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]>, > > > <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, > > ><[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> > > >Subject: Re: bri flapping with demand > cirquit/igrp redistribution > > >Date: Tue, 27 Mar 2001 13:50:52 -0600 > > > > > >I also had the same problem a few days ago. Here > is how I fixed it: > > > > > >1. Isolate the problem by shutting down all > other interfaces besides the > > >interfaces > > > between the two related routers; > > > > > >2. Disable all other routing protocols (non-OSPF > ones); > > > > > >3. Turn off IGRP redistribution to OSPF; > > > > > >3. Now, verify the ISDN demand circuit. It > should be quiet now. > > > > > >4. Now, start unshut the interfaces you have shut > down one by one and > > >verify > > > that the ISDN demand circuit. It should > might come up briefly but it > > >should go > > > down and keep quiet after some interfaces > are unshut. If the ISDN > > >line > > >keep dialing, you should know which interface > is causing the problem. > > > > > >5. If the ISDN line is still quiet after you > unshut all interfaces, turn on > > >your other router > > > protocols such as IGRN, RIP, etc one by one. > Again, verify the IDN > > >line after > > > each change as above. > > > > > >5. If the ISDN line is still quiet after you > enable all other routing > > >protocols, turn on your > > >redistribution one by one. Again verify ISDN > line along the way. > > > > > >If you follow these steps, you should be able to > pin down what is causing > > >your ISDN > > >line to stay up. > > > > > >Hope it helps. > > > > > >George Zhang > > > > > > > > > >>> "Donald B Johnson Jr" > <[EMAIL PROTECTED]> 03/27/01 03:33PM >>> > > >It may keep the connection open though even after > there is no intresting > > >traffic. > > >Don > > >- Original Message - > > >From: Alan Basinger <[EMAIL PROTECTED]> &g
Re: bgp path selection
Of course not! p.s: weight then local preference etc. --- Kikpasa <[EMAIL PROTECTED]> wrote: > I hope not, because I can't remember my self > > kerry > > "Yee, Jason" wrote: > > > > hi, > > > > Anyone who has taken the Routing 2.0 exam can tell > me do we need to remember > > the bgp path selection order , like using local > preference first, follow by > > weight etc. > > > > I find it hard to remember > > > > thanks > > > > Jason > > > > ___ > > UPDATED Posting Guidelines: > http://www.groupstudy.com/list/guide.html > > FAQ, list archives, and subscription info: > http://www.groupstudy.com > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: > http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: > http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/ ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
HDLC, SDLC...
Dear all, I am a little bit confused about the difference of framing between hdlc, sdlc, lapb, lapd, llc2. Can someone help me? Thank you, cvp. __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/ ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE written exam passed!
Dear All, I would like to thank everybody on this mailing list and especially those I talked to directly. I am now working toward the lab and will try it within this year. I worked essentially closed to the Cisco web site, ietf.org (RFC)and other web sites whose the links were given by y'all. I think pursuing the CCNP and CCDP is a good way to be well prepared. Nevertheless not accurate enough. I failed several weeks ago for 1% the CID3.0 as I worked only toward the CCIE written exam. Stupid questions not up-to-date at all (about RFC obsolete etc.)! Anyway, I'm in a good mood today and will work seriously to finish it within the next 2 weeks. Good luck to everybody who pursuing it. Let's talk each other on the CCIE Lab Mailing List soon! cvp ccnp/ccda/ccie written exam <-will feel better when I input my number ;-)Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere!
CCIE Study group in Tokyo?
Hi, Do you know whether there is a CCIE study group in Tokyo? Thankx, cvp. ccnp/ccda/ccie written (for the moment :) __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/ **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ccie student in Tokyo area??
Hi, I am looking for someone to work with me on the ccie lab or a place where I can practice it in Tokyo area. I already passed the ccie written exam. Can someone help me? Thank you, cvp. ccnp/ccda = CVP Network Coordinator CCNP/CCDA __ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/ **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
