The IESG has approved the following document:
- 'Border Gateway Multicast Protocol (BGMP): Protocol Specification '
<draft-ietf-bgmp-spec-06.txt> as an Informational RFC
This document is the product of the Border Gateway Multicast Protocol
Working Group.
The IESG contact persons are Alex Zinin and Bill Fenner.
Technical Summary
This document describes BGMP, a protocol for inter-domain multicast
routing. BGMP builds shared trees for active multicast groups, and
optionally allows receiver domains to build source-specific, inter-
domain, distribution branches where needed. BGMP natively supports
"source-specific multicast" (SSM). To also support "any-source
multicast" (ASM), BGMP requires that each multicast group be associated
with a single root (in BGMP it is referred to as the root domain). It
requires that different ranges of the multicast address space are
associated (e.g., with Unicast-Prefix-Based Multicast addressing) with
different domains. Each of these domains then becomes the root of the
shared domain-trees for all groups in its range. Multicast participants
will generally receive better multicast service if the session
initiator's address allocator selects addresses from its own domain's
part of the space, thereby causing the root domain to be local to at
least one of the session participants.
Working Group Summary
The community didn't have enough motivation to invest enough
cycles in finishing the work on this protocol or its implementation.
This document would be an archival snapshot of the work.
Protocol Quality
The specification was reviewed for IESG by Alex Zinin.
RFC Editor Note:
In section 10, in the second paragraph under the heading
"OpenSent state:"
OLD
If the value of the Autonomous System
field is the same as the local Autonomous System number
NEW
If the configured remote Autonomous System value for this peering
is the same as the local Autonomous System number
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