RE: demand circuit with dialer profile

From: Brian McGahan (brian@cyscoexpert.com)
Date: Sat Mar 01 2003 - 18:28:48 GMT-3


There are a number of reasons that a demand circuit would remain up. My
first guess would be that your problem is the host route being removed
installed. Try adding the command 'no peer neighbor-route' on the
dialer interface of both sides.

If you debug ip ospf flood events you can see which LSA is causing the
topology change. If it is the peer route, then you know that's your
problem.

See the following link for more info:

http://www.cisco.com/en/US/tech/tk648/tk365/technologies_tech_note09186a
008009481b.shtml

HTH

Brian McGahan, CCIE #8593
Director of Design and Implementation
brian@cyscoexpert.com

CyscoExpert Corporation
Internetwork Consulting & Training
Toll Free: 866.CyscoXP
Fax: 847.674.2625

> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Ccie candidate
> Sent: Saturday, March 01, 2003 1:24 PM
> To: ccielab@groupstudy.com
> Subject: demand circuit with dialer profile
>
> Hi everyone,
> I'm trying to implement demand circuit with dialer profile. Everything
> works fine but the isdn circuit keeps flapping every (120seconds -the
> default idle timeout). If I implement the same config with legacy
> DDR(dialer map) demand circuit (ip ospf demand-circuit) works OK. The
> question is to restore the ospf routes if the LAN interface fails.
Show
> dialer shows the the link triggered by 224.0.0.5 (ospf hello) although
the
> hello should be suppressed in demand circuits.
> But this does not happen with legacy DDR (dialer map). Any ideas ?
>
> Thanks in advance ,
>
> KAfkaf
>
>
> Below is the topology
>
> R5----ISDN----R3-----OSPF
> | |
> ---------------------
>
>
>
>
>
>
>
> ---------------------------------
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