Protocol Action: 'IS-IS Multi-Instance' to Proposed Standard (draft-ietf-isis-mi-08.txt)

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The IESG has approved the following document:
- 'IS-IS Multi-Instance'
  (draft-ietf-isis-mi-08.txt) as Proposed Standard

This document is the product of the IS-IS for IP Internets Working Group.

The IESG contact persons are Adrian Farrel and Stewart Bryant.

A URL of this Internet Draft is:
http://datatracker.ietf.org/doc/draft-ietf-isis-mi/




Technical Summary

This specification provides for a method for a single router to share one or 
more circuits among multiple IS-IS routing protocol instances. This allows for 
the isolation of resources into distinct instances. 

Working Group Summary

The consensus was strong for this specification. While there was healthy 
discussion and development over multiple revisions of the draft, no strong 
objections were present during the development process. 

Document Quality

There are no known current implementations of the draft; however, there has been
a large interest expressed in the WG by both vendors and operators for this 
specification to be completed. 

Personnel

Chris Hopps (chopps@rawdofmt.org) is the Document Shepherd
Adrian Farrel (adrian@olddog.co.uk) is the Responsible AD

IANA Note

  Please note that this document requests allocation from the IS-IS TLV registry that requires
  expert review. The designated experts are Chris Hopps and Dave Ward, the current ISIS WG
  co-chairs. Chris is also the Document Shepherd. Thus, expert review has been performed.

  Additionally, please note that this document requests allocation from the Ethernet Numbers
  registry that requires application by form and expert review. The designated expert is
  Dan Romascanu, and he has performed expert review and confirmed he is OK with the
  allocation. A copy of the application form is presented here:

> Contact Name:
> Les Ginsberg
>
> Contact Email:
> ginsberg@cisco.com
>
> Type of Assignment:
> Two EUI-48 bit multicast MAC layer addresses.
> (Block size is 2)
>
> Registry:
> Ethernet numbers as specified in RFC 5342
>
> http://www.iana.org/assignments/ethernet-numbers/ethernet-
> numbers.xml
>
> Description:
> Unique MAC multicast destination addresses are required for support
> of IS-IS Multi-Instance. These new addresses are used to isolate IS-IS
> PDUs associated with non-zero instances of the protocol from the
> legacy instance of the protocol. In this way the non-zero instance PDUs
> will not be seen by legacy instances. This is necessary to prevent
> operation of the non-zero instances from interfering with operation of
> the legacy instances.
>
> Two addresses are required. One for all level 1 MI routers (AllL1MI-
>  ISs) and one for all level 2 MI routers (AllL2MI-ISs)
>
> Additional Info:
> http://datatracker.ietf.org/doc/draft-ietf-isis-mi/


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