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Re: [OSPF] CCAMP last call on advertisement of inter-AS TE links

I can't speak for the OSPF WG as a whole, but I have reviewed the subject document and am very happy to see that the suggestion to use separate inter-AS LSA types has been incorporated. I have no further technical comments on the document and trust that the ccamp WG has verified that this information encoding meets the TE requirements. The usage described in sections 2.2 and 2.3 seem reasonable to me. 

I have the following editorial comments:
1. Sections 3.3.2 and 3.3.2 - Both of these say "Use of the TE Router ID is RECOMMENDED." I believe these should be respectively replaced by "Use of the TE Router Address as specified in the Router Address TLV [OSPF-TE] is RECOMMENDED." and "Use of the TE Router IPv6 Address as specified in the IPv6 Router Address as specified in the IPv6 Router Address TLV [OSPF-V3-TE] is RECOMMENDED." 2. Section 3.2.1 states "This is because... that may operate in a different address space;". If they are using a different address space on the link between the ASes, then I'd expect there to be problems with BGP as well :^) I'd suggest: "Given that OSPF is an IGP and should only be utilized between routers in the same routing domain, the OSPF specific Link ID and Neighbor ID sub-TLVs are not applicable to inter-AS links.". 3. You may want to expand some acronyms on their first use. For example, "AS Boundary Router (ASBR)", "Link State Advertisement (LSA)" and 
     "Path Computation Element (PCE)".
4. [OSPFV3] is listed to as both a Normative and Informative reference. 

Thanks,
Acee

On Mar 19, 2008, at 2:06 PM, Adrian Farrel wrote:


Hi,

You may recall providing useful review and feedback on
http://www.ietf.org/internet-drafts/draft-ietf-ccamp-ospf-interas- te-extension-02.txt
The authors believe that they have taken on board all the comments received 
from the OSPF working group and have updated the draft accordingly.
CCAMP is holding a three week working group last call on this I-D along with 
its IS-IS partner document:
http://www.ietf.org/internet-drafts/draft-ietf-ccamp-isis-interas- te-extension-00.txt
These documents describe how to advertise the TE links that connect an AS to the outside world within the AS's IGP. As the drafts are at pains to point out, there is no proposal to advertise the TE information more widely (such 
as to other ASes).

The last call will end at 12 noon BST on April 9th 2008.
Please send your comments to the CCAMP list or direct to the CCAMP chairs. 

Thanks,
Adrian and Deborah


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