OSPF

[keven.jones]

Hi

We got a Triangle Setup.

A connects to B   = 1MB

A connects to C  = 1MB

B connects to C  = 2MB

Most of the services are located in A.

server located in B needs to replicate with Server located in C and vice-versa

If B or C loses link with A then reachability should still be there using B--C---A or C---B---A

Link address are advertised under OSPF Process, is this enough to ensure it will take the shortest path to reach destination or OSPF cost statement is needed.

cheers

Kevin

[Peter Paluch]

Keven,

If you configure the interfaces between your routers using the correct bandwidth command, the OSPF will automatically calculate the OSPF cost based on the preconfigured bandwidth, and will try to prefer the fastest routes. In any case, the OSPF will provide full connectivity in case of link or node failures until there is a physical route from one place in your network to another, regardless of the bandwidth command setting - just the "shortest" routes may not in fact be the real shortest routes.

Using the ip ospf cost command is not neccessary until you willingly want to influence OSPF's routing decisions.

Best regards,

Peter