From: Daniel C. Young (danyoung99@xxxxxxxxxxxx)
Date: Wed Apr 04 2001 - 17:33:15 GMT-3
Also, guy. If your spoke was using a subinterface, you would not see
neighbors unless you typed 'ip ospf network point-to-multipoint'. Of course,
'ip ospf network broadcast' would work as well.
The point is, as Pamela explained, OSPF treats FR (by default) as a
nonbroadcast network, which means that the multicasts needed to become
neighbors (224.0.0.5) are not sent.
Hope this clears it up.
Daniel Young
Sr. Network Engineer
Internet Data Center
SBC Service Inc. - ITO
(949) 221-1928 Office
(714) 350-8945 Cell
ICQ# 109846891
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Guy Farber
Sent: Wednesday, April 04, 2001 2:57 AM
To: ccielab@groupstudy.com
Subject: OSPF over NBMA
Guys,
I have a very simple FR network. One router functions at the FR switch and 2
others have a pvc between them. When I run OSPF over the FR link without
changing any OSPF interface parameters and using in-arp, hellos are not
being sent from the routers. If I change the interface type to broadcast,
they start exchanging hellos and finally build an adjacency. Now for the
interesting part, if I put a neighbor statement on one of them they start
exchanging hellos and become neighbors. If I remove the neighbor statement
it stays the same.
I'm using 2621 and 3640 with ver 12.1(4)
What am I missing here?
-------------------------------------------------
Guy Farber
Systems Engineer
Tel: +972 (9) 970-0363
Fax: +972 (9) 970-0019
GSM: +972 (54) 975-363
Email: gfarber@cisco.com
Cisco Systems Israel
85 Medinat Hayehudim St.
46766 Herzliya
ISRAEL
-------------------------------------------------
"Programming today is a race between software engineers striving to build
bigger and better idiot-proof programs, and the Universe trying to produce
bigger and better idiots. So far, the Universe is winning."
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