From: Richard Dumoulin (Richard.Dumoulin@vanco.fr)
Date: Sun Feb 05 2006 - 19:33:01 GMT-3
Basically you need to do 2 things when troubleshooting this :
First you need to ensure you can PING end to end, and second you need to
type + show ip eigrp neighbor ; and look at the Q column values that should
be 0. If the Q value keeps being more than 0 and your neighbour relationship
resets every few minutes then it means one of the routers sent an update but
did not receive the acknowledge. Then you must ask yourself why? Did the
update go through? If yes, did the ACK come back?
Also you cannot expect the grouplist to help you solve this if you do not
send the results of commands like sh interface, sh ip ei nei and the
configuration scripts. Things like "II don't think it s this or that" won't
help at all
-- Richard
-----Message d'origine-----
De : Richard Dumoulin
Envoyi : dimanche 5 fivrier 2006 23:04
@ : 'Nadeem Zahid (iszahid)'; Richard Dumoulin; xprtofnet;
ccielab@groupstudy.com
Objet : RE : RE : Issue with EIGRP routes
What's the MTU of each end interface? Can you ping from one end to the
other? If yes can you progressively increase the packet size of the PING and
set the DF bit until you reach the mtu?
-----Message d'origine-----
De : Nadeem Zahid (iszahid) [mailto:iszahid@cisco.com]
Envoyi : dimanche 5 fivrier 2006 22:59
@ : Richard Dumoulin; xprtofnet; ccielab@groupstudy.com
Objet : RE: RE : Issue with EIGRP routes
Yes. nbr is fine. I don't think MTU is the issue.
_____
From: Richard Dumoulin [mailto:Richard.Dumoulin@vanco.fr]
Sent: Sunday, February 05, 2006 1:35 PM
To: 'xprtofnet'; Nadeem Zahid (iszahid); 'ccielab@groupstudy.com'
Subject: RE : Issue with EIGRP routes
Oh I forgot to ask. Does a neighbour relationship get established?
-----Message d'origine-----
De : Richard Dumoulin
Envoyi : dimanche 5 fivrier 2006 22:30
@ : 'xprtofnet'; Nadeem Zahid (iszahid); ccielab@groupstudy.com
Objet : RE : Issue with EIGRP routes
How many routes do you have on the routing table? You might have an MTU
issue so that eigrp believes it has a 1500 byte mtu interface for instance
and hence sends an eigrp update packet too big. Try lowering the mtu on both
ends and let us know
-- Richard
-----Message d'origine-----
De : nobody@groupstudy.com [mailto:nobody@groupstudy.com
<mailto:nobody@groupstudy.com> ] De la part de xprtofnet
Envoyi : dimanche 5 fivrier 2006 20:10
@ : Nadeem Zahid (iszahid); ccielab@groupstudy.com
Objet : Re: Issue with EIGRP routes
try disabling ip eigrp split-horizon...
--- "Nadeem Zahid (iszahid)" <iszahid@cisco.com>
wrote:
> I see that when I'm running EIGRP on top of PPPoFR
> between two
> routers...I don't get the advertised EIGRP routes
> on the other side. Removing the VT/PPP from the
> subint and running it
> over FR directly, everything works.
> Any known issues? One side is Hssi, other side is
> Serial but I don't
> think that is the problem.
> thnx
>
> Nadeem
>
>
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