From: Teisberg, Evan (eteisbe@qwest.com)
Date: Thu Dec 05 2002 - 17:32:17 GMT-3
Allen,
OSPF neighbors will only form adjacencies with router on the same datalink.
You can think of it as being two hops away (across two data links).
You can ping routers two or three hops away, but you can not form an OSPF
adjacency.
HTH
-Evan.
-----Original Message-----
From: McClure, Allen [mailto:Allen.McClure@Tricon-Yum.Com]
Sent: Monday, November 18, 2002 9:25 AM
To: ccielab@groupstudy.com
Subject: OSPF Neighbors on NBMA
Probably a silly question, but I've gotten a little rusty since I took a
study break.
I'm trying to understand exactly why two NBMA spokes can't become
neighbors.
R1 (dlci 105) --------- (dlci 501) R5
--------- (dlci 401) R4
R1 would be a point-to-multipoint interface. I understand that making
R1 the DR makes everything work and that adjacencies aren't formed or
necessary from R5 to R4, but I can't remember why they CAN'T be formed
when they can ping each other, etc..
Allen McClure
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