If you are talking about using the ISDN as a backup interface then the
following are the commands you need..
On the Serial interface that will be backed by the ISDN interface enter the
following...
backup interface BRI0
backup delay 10 10 (comes up after 10 seconds of down time, goes down after
the serial comes back up for 10 seconds)
--
Chris A.
Justin Marcus <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> hey i've noticed in a few peoples configs and what thery have been talking
> about, theres some backup command :)
> now i've got a 1603, and its got 1 serial and 1 isdn.. so 2 wan ports, and
> ios 12.8, but i cant seem to be able to find the backup command ?
> i tried in the actual interface, everywhere but it doesnt seem to be
> avaliable ?
> is it possible its not supported in these low end router ?
>
> thanks :)
>
> Justin.
>
>
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