FYI. Regards, Thomas Trede ----- Original Message ----- From: "The IESG" <iesg-secretary@ietf.org> To: <IETF-Announce: ;> Cc: "RFC Editor" <rfc-editor@isi.edu>; "Internet Architecture Board" <iab@isi.edu>; <ipng@sunroof.eng.sun.com> Sent: Friday, June 30, 2000 1:14 PM Subject: Protocol Action: Router Renumbering for IPv6 to Proposed Standard

The IESG has approved the Internet-Draft 'Router Renumbering for IPv6' <draft-ietf-ipngwg-router-renum-10.txt> as a Proposed Standard. This document is the product of the IPNG Working Group. The IESG contact persons are Erik Nordmark and Thomas Narten.

Technical Summary

IPv6 Neighbor Discovery and Address Autoconfiguration conveniently make initial assignments of address prefixes to hosts. Hosts obtain routing prefixes from routers, and form addresses from those prefixes. This mechanism simplifies site renumbering by allowing routers to simultaneously phase in new prefixes and phase out old ones.

This document defines a mechanism called Router Renumbering that allows the address prefixes routers advertise to be configured and reconfigured from a central place. That is, it allows a site administer to easily change the prefixes that all of its routers advertise. This mechanism may facilitate easier site renumbering.

Working Group Summary

The IPng WG originally asked to advance the document over a year ago, and the IESG returned it to the WG asking for a strengthening of the reliability aspects of the protocol. This version of the document includes those changes and no issues were raised during the Last Call.

Protocol Quality

This protocol has been reviewed for the IESG by Thomas Narten and Erik Nordmark.

Note to RFC Editor:

Please include the following as an IESG Note:

This document defines mechanisms for informing a set of routers of renumbering operations they are to perform, including a mode of operation in environments in which the exact number of routers is unknown. Reliably informing all routers when the actual number of routers is unknown is a difficult problem. Implementation and operational experience will be needed to fully understand the applicabilty and scalability aspects of the mechanisms defined in this document when the number of routers is unknown.

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