From: Michael Popovich (m.popovich@xxxxxxxx)
Date: Fri Jan 04 2002 - 01:48:04 GMT-3
I am not sure I understand your question but as I see how IS-IS is put
together the need for CLNS is because of the ISO standard for addressing and
PDU's that are used to make adjacencies. These PDU's use the CLNP protocol
to talk to peers and are actually called CLNS PDU's. You must enable CLNS in
order for IS-IS to form adjecencies and route, even if it is routing TCP/IP
only.
The idea of multi-area is to allow more that one area address on a router
for ease of migration or changes in the interdomain routing design. You can
add up to 3 area addresses on Cisco routers that will allow the routers to
communicate with other routers in different areas at the same time. When the
change is finally made to one area adjacencies are still formed and
communication was not lost. You can see this reflected in the LSPID's in the
"ISIS database".
But I see multi-area as a part of IS-IS not really a difference other than
network design so I am a little confused by what you are asking here.
MP
From: "CCIE Lab" <labccie@yahoo.com>
To: <ccielab@groupstudy.com>
Sent: Thursday, January 03, 2002 10:16 PM
Subject: CLNS routing
> I'm confused about the difference between the
> Inegrated ISIS routing and the Multi-area ISIS
> routing?
> and their relations with enabling the CLNS routing on
> the router?
> Could anyone give some explanations?
> TIA
>
>
>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:56:15 GMT-3