Re: FW: EIGRP Neighbour - keeps flapping
Perhaps look at your configs for isdn dial up. Is there any dial up involved with these routers ? Perhaps something is causing the isdn to kick in, (dialer list defined properly?) with the default timeout for isdn being 120sec., the line will drop, but is brought back up immediately. this could stuff up the eigrp routes/neighbours, causing the flapping.> MandyD HI all, > > > > I have to routers connected on a token ring > segment. > > Every 120seconds > > exactly they lose the neighbourship. This is then > > established immediately > > but keeps flapping. There have been no changes to > > the default EIGRP config > > here in relation to timers. > > > > Any idea's > > > > > > Andrew Larkins > > BCom, CCNA, CCDA > > Usko Communications > > Tel: +2711 800-9300 > > Fax: +2711 800-9495/6/7/8/9 > > Cell: +2783-656-7214 > > Email: [EMAIL PROTECTED] > > OR [EMAIL PROTECTED] Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: FW: EIGRP Neighbour - keeps flapping
I would start looking at the following: Upgrade to at least 12.0.9. There are a number of bugs that are in the 11.2 series that might impact you - a sweep of the bug list would be in order. Make sure that the other router did not alter their timers/parameters. Place an analyzer on the link or, outside of production, run a debug from the console. You should easily see the purge or other event. The oddity here is the timing - 120 seconds is not a 'common' EIGRP timer issue - 5 seconds for T/R and blah, blah, blah... There is an error for the TRIP with 11.2.16 that you might want to look at in CCO - they don't note a timer, but at a high level there may be a link. --- Andrew Larkins <[EMAIL PROTECTED]> wrote: > > > -Original Message- > From: Andrew Larkins > Sent: 01 November 2000 12:57 > To: 'Phil Barker' > Subject: RE: EIGRP Neighbour - keeps flapping > > > the one router uses 11.2-18 desktop plus. As for the > other, it is owned by a > governemt organisation to which I have no access. > We have already mentioned to the client about > software upgrades, but this > may only happen much further down the line > > -Original Message- > From: Phil Barker > [mailto:[EMAIL PROTECTED]] > Sent: 01 November 2000 12:38 > To: Andrew Larkins; Cisco Mail List > Subject: Re: EIGRP Neighbour - keeps flapping > > > Andrew, > What IOS version are you running on ? > Do you have any other Routers on any other Token > Ring > segments ? > > I believe that major surgery was implemented in IOS > 11.3 for EIGRP not sure how that would effect Token > Ring though. > > Have you analysed the Token Ring Segment for errors > e.g beaconing etc ? > > It is possible that some external event is causing a > Ring purge every 2 minutes and stopping the EIGRP > multicast packets getting through thus, losing your > neighbor relationship. > > HTH > > Phil. > --- Andrew Larkins <[EMAIL PROTECTED]> wrote: > > > HI all, > > > > I have to routers connected on a token ring > segment. > > Every 120seconds > > exactly they lose the neighbourship. This is then > > established immediately > > but keeps flapping. There have been no changes to > > the default EIGRP config > > here in relation to timers. > > > > Any idea's > > > > > > Andrew Larkins > > BCom, CCNA, CCDA > > Usko Communications > > Tel: +2711 800-9300 > > Fax: +2711 800-9495/6/7/8/9 > > Cell: +2783-656-7214 > > Email: [EMAIL PROTECTED] > > OR [EMAIL PROTECTED] > > > > > > "This message may contain information which is > > confidential and subject to > > legal privilege. If you are not the intended > > recipient, you may not peruse, > > use, disseminate, distribute or copy this message. > > > If you have received > > this message in error, please notify the sender > > immediately by email, > > facsimile or telephone and return and/or destroy > the > > original message." > > > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > > Do You Yahoo!? > Get your free @yahoo.co.uk address at > http://mail.yahoo.co.uk > or your free @yahoo.ie address at > http://mail.yahoo.ie > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] = Robert Padjen __ Do You Yahoo!? >From homework help to love advice, Yahoo! Experts has your answer. http://experts.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FW: EIGRP Neighbour - keeps flapping
-Original Message- From: Andrew Larkins Sent: 01 November 2000 12:57 To: 'Phil Barker' Subject: RE: EIGRP Neighbour - keeps flapping the one router uses 11.2-18 desktop plus. As for the other, it is owned by a governemt organisation to which I have no access. We have already mentioned to the client about software upgrades, but this may only happen much further down the line -Original Message- From: Phil Barker [mailto:[EMAIL PROTECTED]] Sent: 01 November 2000 12:38 To: Andrew Larkins; Cisco Mail List Subject: Re: EIGRP Neighbour - keeps flapping Andrew, What IOS version are you running on ? Do you have any other Routers on any other Token Ring segments ? I believe that major surgery was implemented in IOS 11.3 for EIGRP not sure how that would effect Token Ring though. Have you analysed the Token Ring Segment for errors e.g beaconing etc ? It is possible that some external event is causing a Ring purge every 2 minutes and stopping the EIGRP multicast packets getting through thus, losing your neighbor relationship. HTH Phil. --- Andrew Larkins <[EMAIL PROTECTED]> wrote: > HI all, > > I have to routers connected on a token ring segment. > Every 120seconds > exactly they lose the neighbourship. This is then > established immediately > but keeps flapping. There have been no changes to > the default EIGRP config > here in relation to timers. > > Any idea's > > > Andrew Larkins > BCom, CCNA, CCDA > Usko Communications > Tel: +2711 800-9300 > Fax: +2711 800-9495/6/7/8/9 > Cell: +2783-656-7214 > Email: [EMAIL PROTECTED] > OR [EMAIL PROTECTED] > > > "This message may contain information which is > confidential and subject to > legal privilege. If you are not the intended > recipient, you may not peruse, > use, disseminate, distribute or copy this message. > If you have received > this message in error, please notify the sender > immediately by email, > facsimile or telephone and return and/or destroy the > original message." > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
