A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Bit Indexed Explicit Replication Working Group of the IETF.
Title : Multicast using Bit Index Explicit Replication
Authors : IJsbrand Wijnands
Eric C. Rosen
Andrew Dolganow
Tony Przygienda
Sam K Aldrin
Filename : draft-ietf-bier-architecture-02.txt
Pages : 36
Date : 2015-07-29
Abstract:
This document specifies a new architecture for the forwarding of
multicast data packets. It provides optimal forwarding of multicast
packets through a "multicast domain". However, it does not require a
protocol for explicitly building multicast distribution trees, nor
does it require intermediate nodes to maintain any per-flow state.
This architecture is known as "Bit Index Explicit Replication"
(BIER). When a multicast data packet enters the domain, the ingress
router determines the set of egress routers to which the packet needs
to be sent. The ingress router then encapsulates the packet in a
BIER header. The BIER header contains a bitstring in which each bit
represents exactly one egress router in the domain; to forward the
packet to a given set of egress routers, the bits corresponding to
those routers are set in the BIER header. Elimination of the per-
flow state and the explicit tree-building protocols results in a
considerable simplification.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-bier-architecture/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-bier-architecture-02
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-bier-architecture-02
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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