OSPF Design Help

Unanswered Question
May 24th, 2007
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Please refer to my simple diagram.


Network 1 reaches Network 3, 4 and unknown networks via link 1 only. If link 1 fails, it should use Link 2 as the back up link. The same applies to Network 2. Network 2 should only use Link 2. How do I design my OSPF according to these requirements? Thanks.



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mohammedmahmoud Thu, 05/24/2007 - 13:19
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Hi,


I guess that your design has fulfilled your needs as OSPF prefers intra-area over inter-area routes, and thus network 1 will always prefer link 1 and link 2 would be its backup and vice versa.



HTH, please do rate all helpful replies,

Mohammed Mahmoud.

kevin.hu Sun, 05/27/2007 - 20:13
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How would traffic from network 1 come back if I only advertise network 1 from area 1 in case link 1 fails?

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