From: Church, Chuck (cchurch@wamnetgov.com)
Date: Thu Feb 05 2004 - 15:47:18 GMT-3
Is this a new installation, or has it been in place for a while? If it's flapping and been in place for a while, I'd say it's more likely packet loss due to something, rather than mis-configuration. A failing circuit will usually cause hellos to be lost and up/down neighbor messages to be logged. Check your DSUs for errors, assuming it's serial ints. And check the serial ints for errors, queue drops, etc. A pegged CPU on the router can also cause neighbors to drop.
Chuck Church
CCIE #8776, MCNE, MCSE
Wam!Net Government Services
13665 Dulles Technology Dr. Ste 250
Herndon, VA 20171
Office: 703-480-2569
Cell: 703-819-3495
cchurch@wamnetgov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=index&search=cchurch%40wamnetgov.com
> -----Original Message-----
> From: Packet Man [mailto:ccie2b@hotmail.com]
> Sent: Thursday, February 05, 2004 1:40 PM
> To: turgon2004@hotmail.com
> Cc: ccielab@groupstudy.com
> Subject: RE: Eigrp
>
>
> Thanks for getting back to me.
>
> As it happens, I tried both of those debugs but the output
> was, for the most
> part, undecipherable and I couldn't tell from that output if
> there was a
> mis-match.
>
> Do you know what specifically I should look for in the output
> from those
> debugs to see if there's a Hello or Hold interval mismatch?
>
> Thanks iv advanced
>
>
> >From: "Gary Duncanson" <turgon2004@hotmail.com>
> >To: ccie2b@hotmail.com
> >CC: ccielab@groupstudy.com
> >Subject: RE: Eigrp
> >Date: Thu, 05 Feb 2004 18:34:49 +0000
> >
> >debug eigrp neighbor
> >debug eigrp packet
> >
> >
> >>From: "Packet Man" <ccie2b@hotmail.com>
> >>Reply-To: "Packet Man" <ccie2b@hotmail.com>
> >>To: ccielab@groupstudy.com
> >>Subject: Eigrp
> >>Date: Thu, 05 Feb 2004 12:50:24 -0500
> >>
> >>Hi all,
> >>
> >>I'm trying to debug a flapping Eigrp neighbor. I can
> access my local
> >>router's config but I can't access the remote router.
> >>
> >>I'm trying to figure out which debug to use to see if
> there's a mismatched
> >>hello or holdtime interval, but can't seem to find the
> right debug to use.
> >>
> >>Anybody have any ideas?
> >>
> >>Thanks in advanced.
> >>
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