From: Larry Roberts (larryr@xxxxxxxxxxxx)
Date: Wed Apr 03 2002 - 22:53:43 GMT-3
Louis,
>From what I remember, Dialer Watch is only supported on EIGRP and OSPF.
Thanks,
Larry Roberts
CCIE #7886
----- Original Message -----
From: "Krucker, Louis" <louis.krucker@sunrise.net>
To: <ccielab@groupstudy.com>
Sent: Wednesday, April 03, 2002 9:54 AM
Subject: ISDN Backup
> Hi folks,
>
> I was reading an older posting about ISDN
> Backup with OSPF demand circuit and dialer watch.
>
> The poster have used both Dialer watch and demand circuit together
>
> My Question:
>
> If i use demand circuit did i need techn. like dialer
> watch or snapshot routing as well? I think not but am i right?
>
> I am trying out now dialer watch with IGRP.
>
> 2 Routers connected over serial line, both routers use ISDN with dialer
> watch for backup, if i shut the serial the BRIs comes up, no problem.
>
> After few minutes i type no shut on the serial Interface and in this
> case both the BRI and serial are up. This scenario creates me a routing
> loop because incoming IGRP updates are forwarded out the BRI and
> vice versa on the other side. The routes are in "possible down" state
> and becbuse the routes are watched never appears in the routing table.
>
> Does anybody have a solution for this Problem?
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