Re: [Isis-wg] I-D Action:draft-ietf-isis-layer2-05.txt

["Dhananjaya Rao (dhrao)" <[e-mail]>]

Hi folks,

We're just catching up on the discussions on the mailing list regarding
the L2 IS-IS draft-ietf-isis-layer2-04.txt. As the authors of OTV,
we'd like to clarify any doubts or concerns regarding the extensions
used by OTV.

Briefly, OTV uses the L2 IS-IS extensions being defined to provide a
solution for interconnecting datacenter networks. An I-D describing
the solution has been recently published at
http://tools.ietf.org/html/draft-hasmit-otv-00.

OTV shares along with TRILL/802.1aq several of the PDU/TLVs that
have been defined in this draft. There are of course a few additional
sub-TLVs defined specifically for OTV:

- A couple of hello extensions to advertise L2 site membership and
  capabilities.
- A group membership sub-TLV to advertise multicast source information.

The solution is already being deployed in several enterprise networks
and a final product with this solution is shipping soon. Given the
multiple technologies using L2 IS-IS, we'd like to ensure the extensions
and codepoints are published in a common document to aid interoperable
implementations.

Please let us know if you have any questions.

Thanks,
-Dhananjaya (for the authors)

 
>
>A New Internet-Draft is available from the on-line 
>Internet-Drafts directories.
>This draft is a work item of the IS-IS for IP Internets 
>Working Group of the IETF.
>
>
>	Title           : Extensions to IS-IS for Layer-2 Systems
>	Author(s)       : A. Banerjee, et al.
>	Filename        : draft-ietf-isis-layer2-05.txt
>	Pages           : 60
>	Date            : 2010-04-30
>
>This document specifies the IS-IS extensions necessary to support
>multi-link IPv4 and IPv6 networks, as well as to provide true link
>state routing to any protocols running directly over layer 2.  While
>supporting this concept involves several pieces, this document only
>describes extensions to IS-IS.  We leave it to the systems using
>these IS-IS extensions to explain how the information carried in
>IS-IS is used.
>
>A URL for this Internet-Draft is:
>http://www.ietf.org/internet-drafts/draft-ietf-isis-layer2-05.txt
>
>Internet-Drafts are also available by anonymous FTP at:
>ftp://ftp.ietf.org/internet-drafts/
>
>Below is the data which will enable a MIME compliant mail reader
>implementation to automatically retrieve the ASCII version of the
>Internet-Draft.
>
><ftp://ftp.ietf.org/internet-drafts/draft-ietf-isis-layer2-05.txt>