Dimitri,
See below.
Regards,
Dan
----- Original Message -----
From: "dimitri papadimitriou" <[EMAIL PROTECTED]>
To: "Dan Li" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Thursday, November 09, 2006 10:24 AM
Subject: Re: [L1vpn] draft-li-l1vpn-enhanced-mode-analysis-00.txt
dan
you wrote
In this service model, no provider network routing information is
leaked to CEs, only CE-PE TE link routing information is carried
through the backbone. The size of such routing information is
relatively small, but if the customers need to form routing adjacency
between CEs over CE-CE connections in order to exchange customer site
routing information, it may cause up to N-square routing adjacencies
between CEs (if a full mesh was aimed at). So in this situation,
scalability may become an issue.
indeed ... but the first issue is to know when CE's are IP/MPLS LSRs
whether they are willing to accommodate an adjacency with their attached
PE's to prevent such effect - there is another aspect to take into account
the CE-to-CE adj. in a pure overlay is an IP adj. while in the VPN context
it is far from clear whether the CE-PE routing adj. will be used to
exchange other information than L1VPN membership, CE-PE TE link
information, etc. ... in brief, the extended model also considering
unification of the routing instance at the CE level and not only between
the client and the network ?
Yes, you're right.
From customer's perspective if they want to exchange the
customer site routing information over CE-CE connections, this may casue
the N-Square issue. But I am not sure if the extended model needs to
consider
the unification of the routing instance at the CE level.
-d.
Dan Li wrote:
Dear WGs,
I’ve posted a new draft which presents detailed information with respect
to the four sub-models of the L1VPN enhanced mode.
Comments are very welcome.
Thanks,
Dan
Abstracts:
This document presents detailed information with respect to the four
sub-models of the Layer One Virtual Private Network (L1VPN) enhanced
mode. Each sub-model is evaluated from different points of view, such as
Topology Confidentiality, scalability, and reliability. The requirements
on GMPLS to support each sub-model of the L1VPN enhanced mode are also
discussed in this document.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-li-l1vpn-enhanced-mode-analysis-00.txt
Dan Li
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