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ospf

I have just been reading the cisco white pages on ospf, it says ospf doesnt form neighbour adjacencies with routers on another subnet ? how can this be true ? I have multiple subnets on my site all on etherent and they can all see each other !!

1 REPLY

Re: ospf

Hi Carl,

Lets me try to explain in simple terms.

Seeing each other and forming neighbors and adjancies are different story all together.

On braodcast media the neighbor and adjancies is established between router interfaces who are in same subnet only and once formed then interfaces on different subnets are propagated to different routers via LSAs and all subnets see each other if those interfaces are included in ospf process.

HTH, if yes please rate the post.

Ankur

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