The IESG has approved the Internet-Draft 'Unicast-Prefix-based IPv6 Multicast Addresses' <draft-ietf-ipngwg-uni-based-mcast-03.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.
The IESG also approved Dynamic Allocation Guidelines for IPv6 Multicast Addresses <draft-ietf-malloc-ipv6-guide-04.txt> as a Proposed Standard This document is the product of the Multicast-Address Allocation Working Group. The IESG contact persons are Allison Mankin and Scott Bradner. Technical Summary These two specifications are related to each other, though they were developed in different working groups and Areas. One describes a new standard format for the prefix of IPv6 multicast addresses, while the other describes a new standard allocation mechanism and format for the group identifier, the rightmost portion of IPv6 multicast addresses. The unicast prefix-based IPv6 multicast address specification defines an extension to the multicast addressing architecture of IPv6. The extension describes how to embed unicast prefixes within the multicast address format to create multicast prefixes. By delegating multicast addresses at the same time as unicast prefixes, network operators will be able to identify their multicast addresses without needing to run an inter-domain allocation protocol. The dynamic allocation guidelines for IPv6 multicast addresses describe the format of the group identifier, the lowest 32 bits of the address. The purpose is to reduce the probability of IPv6 multicast address collision, not only at the IPv6 layer, but also at the link-layer of media that encode portions of the IP layer address into their MAC layer address. The group identifier format defined in the specification is required for all IPv6 multicast addresses: spaces for IPv6 permanent multicast addresses and IPv6 permanent group identifiers are defined in IANA considerations, as well as the space and format for group identifiers created by allocation services and zeroconf devices. Working Group Summary The two working groups that developed these related specifications supported their advancement. Protocol Quality The specifications were reviewed by the IESG by Allison Mankin and Thomas Narten. The authors reported functioning implementations of these specifications. -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
