From: Thomas Larus (tlarus@xxxxxxx)
Date: Tue Oct 23 2001 - 17:01:21 GMT-3
----- Original Message -----
From: "Jim Brown" <Jim.Brown@CaseLogic.com>
To: <ccielab@groupstudy.com>
Sent: Tuesday, October 23, 2001 1:32 PM
Subject: RE: deman-circuit and ccboot lab 20
> If you down a interface manually, the router is smart enough to realize
you
> meant to down the interface and therefore doesn't bring up the ISDN backup
> circuit. If you want to test it, unplug the cable.
>
> Another alternative to monitor a DLCI/PVC is frame-relay end-to-end keep
> alive. It is a 12.0 feature, check it out.
>
> I wouldn't consider using dialer-watch on a frame route a good solution.
The
> PVC on the far end could fail, but the frame route would still appear in
the
> routing table unless you were monitoring the remote host route.
>
> To use dialer-watch you actually should monitor a route on the other side
of
> the frame cloud learned from a dynamic protocol. One that would disappear
if
> the PVC failed.
>
>
> -----Original Message-----
> From: Fear, Russell H [mailto:Russell.Fear@capgemini.co.uk]
> Sent: Tuesday, October 23, 2001 6:47 AM
> To: 'ccielab@groupstudy.com'
> Subject: deman-circuit and ccboot lab 20
>
>
> Can anyone in the group clarify something for me please. When I use ip
ospf
> demand-circuit on a dialer interface, 7 out of 10 times it works fine with
> hellos being supressed, the rest of the time it brings up the line
> continually for hellos. I have debugged in these cases and it is not an
lsa
> but a hello bringing it up. I realise I can stop this with an access list
> but is the command badly bugged or is there something I'm missing ?
>
> Also if anyone has done ccbootcamp lab 20, how do you get the ISDN to
> back-up a dlci ? I see in the solution that they have just placed the
> interface in back-up mode but this doesn't seem to work when I down the
> interface.
>
> Any help would be appreciated.
>
> TIA
>
> Russell
>
>
> * 700 2201 Internal
> * +44 ( 0 ) 870 238 2201 External
> * russell.fear@capgemini.co.uk
>
>
>
>
>
>
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