From: Jim Brown (Jim.Brown@xxxxxxxxxxxxx)
Date: Fri Jan 04 2002 - 12:48:09 GMT-3
I can guarantee you neighbors will not form adjacencies across a multipoint
frame cloud unless you map the CLNS protocol with a DLCI.
I believe you enable CLNS routing in a multiarea situation for the automatic
injection of a default route into level 1 areas.
-----Original Message-----
From: Michael C. Popovich [mailto:mpopovich@layer3.biz]
Sent: Friday, January 04, 2002 8:32 AM
To: ccielab@groupstudy.com
Subject: IS-IS Verification
I have double checked on Documentation CD regarding IS-IS and the need for
CLNS. Peter is definitely right in the fact that CLNS is not required to
route IP using IS-IS. This question is for Peter and anyone else with a good
understanding of IS-IS.
Reading through the Documentation CD on Integrated IS-IS I have a question
regarding multi-area. The way I read it I am assuming that if you implement
a multi-area IS-IS solution then you in fact do need to enable CLNS routing.
Is this true? The examples given in the Documentation CD show that a single
area IS-IS network doesn't need CLNS routing but in the multi-area scenario
they have CLNS routing enabled. This isn't specifically addressed but I
assume with the need for different areas using different NET addresses
requires the CLNS protocol.
Please correct me if I have misinterpreted this.
Thanks,
Michael Popovich
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