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MPLS domain - AS

  • From: Curtis Villamizar <curtis@avici.com>
  • Date: Thu, 25 May 2000 14:09:11 -0400
  • cc: mpls@UU.NET


In message <021801bfc636$7bebfc60$140d85a5@dti.daewoo.co.kr>, "Naveen Seth" wri
tes:
> 
> 1. Does it imply that we cannot have 2 AS(Autonomous System) within the =
> same MPLS domain?

A common IGP is needed to exchange link state and traffic engineering
information.  If the two AS did share a common IGP, they would more
likely be sub-AS within BGP confederations within a common AS.

> 2. Is an MPLS domain contained within an AS?.

Generally yes.  Strictly speaking it doesn't have to be.

> 3. Can we have more than one MPLS domains within an AS?

Yes and this is expected to be quite common as MPLS TE capability
moves closer to the edges of large provider networks and those
providers want to limit the number of LSPs in the core.

> Naveen

Curtis

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