From: Sumit.kumar@comcast.net
Date: Sat Dec 06 2003 - 23:59:46 GMT-3
I don't think there's any incompatibility between two since both have
different mechanisms.
"OSPF Demand -circuits suppress hellos and LSA refresh so avoid bandwidth
usage for OSPF control traffic."
Whereas dialer watch monitors a configured route in the routing table and
brings up and down the ISDN link based on the route status in routing table.
The only tricky part is OSPF cost over the Primary link should be higher
than that over ISDN link so that route over primary link is always the
preferred route in routing table.You can use "Demand circuit " or OSPF
flood-reduction commands to reduce OSPF traffic over DDR link.
----- Original Message -----
From: "Cocimano, Francesco" <FC183400@exchange.Italy.NCR.com>
To: "'CCIE GroupStudy'" <ccielab@groupstudy.com>
Sent: Friday, December 05, 2003 5:03 AM
Subject: dialer-watch and ip ospf demand circuit
> Hi all,
> is there any incompatibility between the command "dialer-watch" and "ip
ospf
> demand-circuit"?
> I mean could I configure these commands in a same BRI interface if I want
> the BRI interface goes up only when there is a change of topology and stay
> up when a route goes down?
> Thanks
> Regards
> Francesco
>
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