I would suggest "debug serial interface" on each router and check:
myseq , mineseen and yourseen keepalive sequence numbers on both ends.
It should help you to determine what is wrong.
In your case, it almost looks like one end of the link has no keepalives
enabled.
Mike
----- Original Message -----
From: Glen Shok <gshok@cisco.com>
To: Fabien Berger <berger@ip-plus.net>; <cisco-nsp@puck.nether.net>
Sent: November 30, 1999 2:17 PM
Subject: Re: [nsp] is line protocol enough?
> if they are directly connected, you need a dte and a dce side cable. (i
think)
> also need to configure the "clockrate" command ON ONE SIDE ONLY.
>
> Glen
>
> At 11:19 AM 11/22/1999 -0500, Fabien Berger wrote:
>
> >i came across a strange thing, can someone explain?
> >
> >2 routers are connected via a serial v.35 (HDLC encapsulation, keepalives
are set to 10s). on one end of the line the line protocol
> >is down and on the other the line protocol stays up (link is up in both
ends). a sh/no sh does not help.
> >
> >the problem is that the static routes pointing towards that interface
(with line protocol up) are not removed. traffic is lost! does
> >this mean that we should never trust the keepalives? should we always let
a routing protocol discover link failures?
> >
> >thanks in advance
> >
> >-Fabien Berger
> >IP-Plus Engineering
> >Swisscom Business Com
> >www.ip-plus.net
> >
> >
>
>
>
>
> --------------------------------------------------------------------------
-----------------
> Glen Shok Phone: 1.650.404.3594
> Systems Engineer Cell: 1.415.215.7279
> NSP Global Crossing Region Pager: 1.800.365.4578
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