Re: OSPF and ISDN

From: Fred Ingham (fningham@xxxxxxxxxxxxxxxx)
Date: Fri Dec 22 2000 - 15:17:28 GMT-3

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If you are doing mutual re-distribution and not filtering, when the
dialer goes down RIP issues a flash update which is redistributed to
ospf and brings the dialer back up. This will happen whether or not you
are using OSPF demand-circuit.

Solution - filter the RIP routes being redistributed into OSPF to
exclude the dialer interface.

This has been covered several times on this group for OSPF and
IGRP. Same scenario.

HTH, Fred.

"Miguel A. Ciena" wrote:
>
> I got one practice lab , that required R1 to R2 to use ISDN . In this =
> ISDN need to be part of OSPF Area 0..Router 2 is running RIP also and =
> I'm doing 2way redistribution. The question is how can you prevent the =
> ISDN to kick in everytime is a topoly change...any config example =
> help!!!
>

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