Have you tried downgrading IOS to a more experienced version, just to see if
your problem goes away?
>From: John Neiberger <[EMAIL PROTECTED]>
>Reply-To: John Neiberger <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: I'm stumped! (was EIGRP over ISDN) LONG
>Date: Wed, 3 Jan 2001 07:51:11 -0800 (PST)
>
>I'm reposting this in the hopes that someone who didn't see it before might
>have some ideas about this. Heck, SWAGs, educated guesstimates, or
>telephone psychic impressions are also welcome. We are completely stumped
>about how to resolve this. I've even posted this question on the CCO Q&A
>Forum but I don't think anyone has been answering questions on there
>lately.
>
>Here is the problem: we have an ISDN BRI backup link between two sites,
>and
>we want to run eigrp over the link when it's in use. The problem is that
>even though the line is not flapping, eigrp is behaving as if it were
>flapping. My side NEVER sees hellos from the other side, but it does
>receive updates. The other side receives my hellos, but it thinks the link
>is bouncing and that my router is intermittently unavailable. My side
>never
>establishes the other as a neighbor.
>
>I've used every debugging command I can find to no avail. Nothing is
>giving
>me any information that I don't already know. We have no access lists
>configured, except for distribute lists but that shouldn't affect neighbor
>relationships, should it?
>
>Here is sample debug output (debug eigrp neighbors and debug eigrp packet):
>
>3d01h: EIGRP: Sending HELLO on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
>
>3d01h: EIGRP: Sending HELLO on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
>
>3d01h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
>
>3d01h: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed
>state
>to up
>3d01h: EIGRP: Sending HELLO on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
>
>3d01h: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x1, Seq 67/0 idbQ 0/0
>
>3d01h: EIGRP: Neighbor(10.120.226.2) not yet found
>
>3d01h: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x1, Seq 67/0 idbQ 0/0
>
>3d01h: EIGRP: Neighbor(10.120.226.2) not yet found
>
>3d01h: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 303xxxxxx
>theirrouter
>3d01h: EIGRP: Sending HELLO on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
>
>3d01h: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x1, Seq 67/0 idbQ 0/0
>
>3d01h: EIGRP: Neighbor(10.120.226.2) not yet found
>
>3d01h: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x1, Seq 67/0 idbQ 0/0
>
>3d01h: EIGRP: Neighbor(10.120.226.2) not yet found
>
>3d01h: EIGRP: Sending HELLO on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
>
>3d01h: EIGRP: Sending HELLO on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
>
>3d01h: EIGRP: Received UPDATE on BRI0 nbr 10.120.226.2
>
>3d01h: AS 2, Flags 0x1, Seq 67/0 idbQ 0/0
>
>3d01h: EIGRP: Neighbor(10.120.226.2) not yet found
>
>Here is some info from the remote side:
>
>theirrouter#
>1d02h: EIGRP: Retransmission retry limit exceeded
>1d02h: EIGRP: Holdtime expired
>1d02h: EIGRP: Neighbor 10.120.226.1 went down on BRI0/0
>1d02h: EIGRP: New peer 10.120.226.1
>
>theirrouter#sho ip eigrp neighbors
>IP-EIGRP neighbors for process 2
>H Address Interface Hold Uptime SRTT RTO Q Seq
> (sec) (ms) Cnt Num
>0 10.120.226.1 BR0/0 12 00:00:38 0 5000 1 0
>
>1d02h: EIGRP: Retransmission retry limit exceeded
>1d02h: EIGRP: Holdtime expired
>1d02h: EIGRP: Neighbor 10.120.226.1 went down on BRI0/0
>1d02h: EIGRP: New peer 10.120.226.1
>
>I'm not getting any errors on the line, and further debugging (isdn q921,
>isdn q931, ppp error, ppp auth, ppp neg, bri-interface) does not show any
>problems whatsoever. I've tried ping tests with different payloads and
>they
>succeeded wonderfully.
>
>I've also made sure that we are in the same 'AS'. We are running 12.1(5)
>on
>a 2520, they run 12.0(5) on a 2524. I've searched CCO for any
>configuration
>hints or bug reports, and I've read through Doyle's Routing TCP/IP section
>on eigrp and I can find no possible explanation for this behavior.
>
>Any takers? ideas? hints? tips? Do you know a good psychic or witch
>doctor? Perhaps a good psychiatrist, instead? :-)
>
>For anyone who has taken the time to read through all of this, I thank you.
>
>Regards,
>John
>
>
>
>
>
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