From: Tim Fletcher (tim@fletchmail.net)
Date: Mon Feb 24 2003 - 12:42:37 GMT-3
Does the ISDN line come back up immediately after it goes down? If so the
problem is the idle-timeout on the far side. Whenever you are doing dialer
watch, you need to set the idle timeout on the non dialer watch side to 0,
so it never times out.
The problem is that the side that is not doing dialer watch has no way of
knowing that the other end is doing dialer watch, so if it doesn't see any
interesting traffic it disconnects. The dialer watch side doesn't care
about interesting traffic, it just keeps the connection up until the route
returns. If the connection drops, it will immediately try to re-establish it.
-Tim Fletcher
At 06:59 AM 2/24/2003 +0200, Cezar Fistik wrote:
>Hi group,
>
>Accoring to K.Solie's book after dialer-idle timer expires the router
>performs a check if the watched routes appear in the routing table through
>other interface than bri. If the route is present it brings down the isdn
>link if not the idle timer is reset and the link is maintained. In my case
>it didn't happen. After idle timer expired the isdn link was just brought
>down. The serial interface through which the watched routes were initialy
>learned was down and isdn interface was down too. That's all. I didn't
>configure an idle timer on bri interfaces. The router used the default. Is
>there anything magic that I forgot to do?
>
>Thanks,
>Cezar Fistik
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