Re: Flapping Tunnel Interface

From: Richard Foltz (ccie2b@xxxxxxxxxx)
Date: Tue Nov 06 2001 - 13:39:16 GMT-3

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you need to make sure your not learning the endpoints of the tunnel through
whatever routing protocol ur using over the tunnel. this will cause it to
flap.

Richard Foltz, CCIE#8339, CCNP-Voice, CCDP, MCSE+I, Network+, A+

----- Original Message -----
From: "Courtney Foster" <cfoster@cnr.edu>
To: <ccielab@groupstudy.com>
Sent: Tuesday, November 06, 2001 10:03 AM
Subject: Flapping Tunnel Interface

> Hello,
> Has anyone ever encountered a problem with flapping Tunnel
> interfaces.
>
> I configured a GRE/IP tunnel over the internet...One side of the tunnel
> showed UP/UP always...the other side of the tunnel showed UP/UP for 20
> seconds...then shows UP/DOWN for a couple of minutes...then goes UP/UP
> for 20 seconds...
>
> Please give me some feed back on this...also...does anyone know of a way
> to disable keepalives on a Tunnel interface...
>
> Courtney Foster
> Sr. Network Engineer
> x5910

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