OSPF over NBMA - network type NMBA question

From: Krake, Kris (KKrake@aegonusa.com)
Date: Fri Sep 13 2002 - 00:44:30 GMT-3


In a hub and spoke topology where you are forced to use network type NBMA in
OSPF for a given subnet you have to configure neighbor statements
statically....I understand that part but have a few questions about being
*precise*.

Obviously you have to configure a neighbor statement from the hub to each of
the individual spokes but:

1) is it *correct* to leave off the reciprocal neighbor statement on the
spoke pointing to the hub - Adjacencies form without it as long as the hub
has them configured.
 
and

2) Should you put in a neighbor statement on each spoke for the remote
spokes? It doesn't appear to be correct to do so because the neighbors
never form an adjacency (TTL issue?).

Anyone?

KK

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Kris A. Krake
AIT Network Engineering and Consulting
502.560.2716
kkrake@aegonusa.com



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