RE: REally interesting question about ospf summarization.

From: Alexander Arsenyev (GU/ETL) (alexander.arsenyev@ericsson.com)
Date: Fri Oct 07 2005 - 09:57:21 GMT-3


area 11 range 1.1.8.0 255.255.252.0 on R2 will inject 1.1.8.0/22 into backbone
area 12 range 1.1.12.0 255.255.252.0 on R2 will inject 1.1.12.0/22 into backbone
All traffic to 1.1.8.0, 1.1.9.0, 1.1.10.0 and 1.1.11.0 will take 1.1.8.0/22 (longest match).
All traffic to 1.1.15.0 will take 1.1.12.0/22 (longest match).
Does it fulfill Your requirement?
HTH
Cheers
Alex

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Stefan Grey
Sent: 07 October 2005 12:28
To: ccielab@groupstudy.com
Subject: REally interesting question about ospf summarization.

Hi group,
Just unusual question.

R1 - R2 -
         |

between router R1 and R2 is area 0. R2 is connected to area 11 and area 12.
Through area 12 network 1.1.15.0 is reacheble. Through area 11 networks:
1.1.8.0, 1.1.9.0,1.1.10.0, 1.1.11.0.

Now we have the task. Tos summarize this networks so that router R1 receves
just one route from both area 11 and area 12.
To summarize just the networks int area 11 we would issue this command:
area 11 range 1.1.8.0 255.255.248.0.

HOw to summarize the routes from two areas???

Thanks. As for me it is pretty interesting question.



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