Subject: The need for a inter-AS 'option d' or similar

From: "Martin Halstead" <[email-masked]>
Date: Tue, 15 Nov 2005 10:43:42 -0000

All

It would be very useful to have some comments on the inter-AS 'option d' draft proposed at the last IETF as I overran the presentation and there was not time to get feedback. I would be really interested to understand if the operational issues discussed in the draft are generic and if an implementation such as 'option d' could help with existing inter-AS incompatibilities. If not, then what shortfalls does the draft need to address? The current draft has an MPLS based data plane. In addition, it would be useful to understand if a VRF Attachment Circuit based data plane, with a single MP-eBGP peer on a separate 'global' interface between ASBRs should be added as an additional data plane option. That may help where providers do not want to connect to other providers via MPLS based interfaces.  

http://www.ietf.org/internet-drafts/draft-kulmala-l3vpn-interas-option-d-01.txt  

Martin Halstead
[email-masked]