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FW: MPLS and IS-IS

2000-05-17 10:50:02

Hi all,

IS-IS is defined to work with CLNP not for IP originally. Until today a lot
of SONET and telecommunication equipment vendors still use IS-IS to route
CLNP packets through the SONET Data communication channel(DCC) to carry
management information and there is a great pressure to change this to OSPF
and IP. I also know that UUNET runs IS-IS on their network. I never heard
any other networks run IS-IS. Seems I am wrong. My questions are.

1. You guys are talking about using IS-IS in a IP networks not in CLNP
networks. The IS-IS has been modified according to RFC 1195 (Use of OSI
IS-IS for Routing in TCP/IP and Dual Environments) or some other standard.
Is this correct? 

2.  Besides UUNET, which ISPs run IS-IS protocol? Can you name a few? or
what percentage of networks run IS-IS instead of OSPF?

Thanks
David


-----Original Message-----
From: HANSEN CHAN [mailto:hchan(_at_)newbridge(_dot_)com]
Sent: Tuesday, May 16, 2000 7:22 AM
To: mpls(_at_)UU(_dot_)NET
Subject: MPLS and IS-IS


Hi all,

I have been hearing IS-IS is a better protocol to be used than OSPF in a
MPLS
network for TE application. Is that a fair statement? What are the technical
reasons?

Appreciate if someone can shed some light on this subject.

Thanks,
Hansen



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