Post the configs for the serial ports at each end.
The following link is called "Troubleshooting Serial Line Problems". It may
not apply in your case; but is useful to have.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1915.htm
> -----Original Message-----
> From: Tariq [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, April 25, 2001 9:43 AM
> To: [EMAIL PROTECTED]
> Subject: RE: Serial Link is flapping [7:1793]
>
>
> Sh ip int shows me
> up up and than after few seconds it shows me up down
>
> I am not doing anything, just trying to connect these routers
> through back
> to back serial cable.
>
>
> Tariq
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> Chuck Larrieu
> Sent: Tuesday, April 24, 2001 9:18 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Serial Link is flapping [7:1793]
>
>
> Tariq, you don't get away so easily :->
>
> When you say "flapping" what is the specific symptom? Sh ip
> int brie shows
> up down? Down down?
>
> Is it that you are losing routes?
>
> Debug fram pack for frame relay links, debug ppp for ppp
> links, debug hdlc
> I think? Don't have a router handy. ) shows what?
>
> You are sitting there minding your own business and the link
> goes down, then
> comes back up? Or are you doing something, like reloading the
> router, and
> the link appears up for a moment, then goes down?
>
> In a situation where you are connecting routers back to back,
> in general I
> have found that if a serial link is not operating properly,
> it is a config
> problem. Knock on wood.
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On
> Behalf Of
> Tariq
> Sent: Tuesday, April 24, 2001 6:03 PM
> To: [EMAIL PROTECTED]
> Subject: Serial Link is flapping [7:1793]
>
> Hello Everybody.
>
> In my home network, one link is continuously flapping.
> I changed the cable but no luck .......
>
> I checked clock rate on DCE side and it was 64000.
>
> Please help me to remove this problem
>
> Tariq
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