OSPF priority and neighbor command

Hey guys,

I am testing OSPF within an NBMA non-broadcast network. I ensure that the
spokes do not become DR/BDR by setting the priority to 0 on the relevant
frame relay spoke interface.

What I have found is that with the priority set to '0' the router will not
accept the 'neighbor x.x.x.x' command under the ospf process. (When I say
accept I mean it is not visible within the configuration).

This is a problem as unicast hello's are not sent to the hub and an
adjacency does not form. I found that removing the 'ip ospf priority 0'
command from the frame relay spoke interface would resolve the problem and
the neighbor command would be accepted and adjacencies would form.

I know there are ways around this (set neighbor command on hub) but I am
just interested as to why this is occurring to help my understanding.

Any comments greatly appreciated.

Thanks,

-Aaron.

Blogs and organic groups at http://www.ccie.net
Received on Wed Jul 13 2011 - 10:27:42 ART