From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Tue Jun 08 2004 - 07:55:00 GMT-3
No, I'm talking about not learning that prefix via the ISDN link.
You can filter some prefixes from specific neighbours...
If your target is to have full time access to R3's loopback, then I
guess is not the best candidate to watch. Try watching a remote link
(may be R2-R3) or have R3 to also advertize a summary that covers the
loopback too.
(You can watch the detail /32 and filter that in the ISDN link, but be
able to receive a more general route that keeps the connectivity
requirement).
jean.paul.baaklini@accenture.com wrote:
> Are you talking about blocking the prefix at all?
>
> But then I would miss the whole point of having a dialer watch... I did
> all this to be able to access R3's loopback in case of a failure on the
> primary link.
>
> -----Original Message-----
> From: Carlos G Mendioroz [mailto:tron@huapi.ba.ar]
> Sent: 08 June 2004 11:24
> To: Baaklini, Jean paul
> Cc: ccielab@groupstudy.com
> Subject: Re: dialer watch and OSPF
>
> What about filtering (distribute-list) the watched route on the ISDN
> link ?
>
> jean.paul.baaklini@accenture.com wrote:
>
>>Hi all,
>>
>>
>>
>>If you conisdere the following layout:
>>
>>
>>
>> FR FR
>>
>>R1-----R2-----R3
>>
>> |____________|
>>
>> ISDN
>>
>>
>>
>>We have enabled ospf everywhere on this network, and used a dialer
>
> watch
>
>>on R1 to "track R3's loopback interface".
>>
>>The problem is when ISDN comes up, the route to R3's loopback appears
>>then as connected (there's layer 3 to layer 2 mapping).
>>
>>Thus, even when the Frame-relay path comes back up, the ISDN line
>
> stays
>
>>up...
>>
>>
>>
>>How can I make the route leant through OSPF to be preferred?
>>
>>
>>
>>Your comments would be much appreciated.
>>
>>
>>
>>Thanks
>>
>>
>>
>>Regards,
>>
>>JP
>>
>>
>>
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-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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