Hi LSR, IDR working group,
According to the suggestion from our ADs, we need more review and feedback from
LSR and IDR working group before this draft is moved forward.
So please review the newest version and provide feedback before 6th July:
https://datatracker.ietf.org/doc/draft-ietf-bier-bgp-ls-bier-ext/.
Thank you for your review and comments!
Best regards,
Sandy (Secretary of BIER WG, on behalf of Tony and Greg)
Original
From: [email protected] <[email protected]>
To: [email protected] <[email protected]>;
Cc: [email protected] <[email protected]>;
Date: 2024年03月18日 09:01
Subject: [Bier] I-D Action: draft-ietf-bier-bgp-ls-bier-ext-17.txt
Internet-Draft draft-ietf-bier-bgp-ls-bier-ext-17.txt is now available. It is
a work item of the Bit Indexed Explicit Replication (BIER) WG of the IETF.
Title: BGP Link-State extensions for BIER
Authors: Ran Chen
Zhaohui Zhang
Vengada Prasad Govindan
IJsbrand Wijnands
Name: draft-ietf-bier-bgp-ls-bier-ext-17.txt
Pages: 11
Dates: 2024-03-17
Abstract:
Bit Index Explicit Replication (BIER) is an architecture that
provides optimal multicast forwarding through a "BIER domain" without
requiring intermediate routers to maintain any multicast related per-
flow state. BIER also does not require any explicit tree-building
protocol for its operation. A multicast data packet enters a BIER
domain at a "Bit-Forwarding Ingress Router" (BFIR), and leaves the
BIER domain at one or more "Bit-Forwarding Egress Routers" (BFERs).
The BFIR router adds a BIER header to the packet. The BIER header
contains a bitstring in which each bit represents exactly one BFER to
forward the packet to. The set of BFERs to which the multicast
packet needs to be forwarded is expressed by setting the bits that
correspond to those routers in the BIER header.
BGP Link-State (BGP-LS) enables the collection of various topology
informations from the network, and the topology informations are used
by the controller to calculate the fowarding tables and then
propagate them onto the BFRs(instead of having each node to calculate
on its own) and that can be for both inter-as and intra-as
situations.
This document specifies extensions to the BGP Link-state address-
family in order to advertise the BIER informations.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-bier-bgp-ls-bier-ext/
There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-bier-bgp-ls-bier-ext-17
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-bier-bgp-ls-bier-ext-17
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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