RE: OSPF NBMA Question

From: Julius Kinsler (jkinsler@harbortech.com)
Date: Thu Apr 20 2006 - 21:01:32 GMT-3


Good point, I wasn't even thinking about that but that is a better
answer. I forgot we are talking about broadcast/Non-Br networks.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
adrian777@comcast.net
Sent: Thursday, April 20, 2006 3:11 PM
To: ccielab@groupstudy.com
Subject: Re: OSPF NBMA Question

The short answer would be - they are not supposed to peer even if you
have multipoint interfaces.

The purpose of choosing a DR and BDR on a multi-access network is to
minimize the number of LSA sent by each router in the area and also the
DR to represent the multi-access network to the rest of the
internetwork.

When a DR is elected all the other routers in that multi-access segment
are going to peer just with the DR and therefore will exchange LSA just
with the DR minimizing the flood.

Adrian Mornaila, CCIE #16030



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