Re: [Bier] Bier chairs: please ask to publish draft-ietf-bier-te-arch-08.txt
Toerless Eckert <tte@cs.fau.de> Mon, 13 July 2020 23:30 UTC
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Date: Tue, 14 Jul 2020 01:30:01 +0200
From: Toerless Eckert <tte@cs.fau.de>
To: bier-chairs@ietf.org, aretana.ietf@gmail.com, gjshep@gmail.com, Michael Menth <menth@uni-tuebingen.de>, bier@ietf.org, tonysietf@gmail.com
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Subject: Re: [Bier] Bier chairs: please ask to publish draft-ietf-bier-te-arch-08.txt
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Oops. Typo leading to mailing list not being included. Rsending Dear BIER chairs I have answered to Lou Berger, included his proposed Traffic Engineering text with minor changes and posted that as BIER-TE 08 version. In my opinion, the authors and the WG have exhausted the work on this document and i hereby are ask respectfully on behalf of the authors for the document to be moved to request for publication so it can enter IETF/IESG review. Thank you very much Toerless > In-Reply-To: <159467963270.25236.3571622591065847738@ietfa.amsl.com> > > On Mon, Jul 13, 2020 at 03:33:52PM -0700, internet-drafts@ietf.org wrote: > > A new version of I-D, draft-ietf-bier-te-arch-08.txt > has been successfully submitted by Toerless Eckert and posted to the > IETF repository. > > Name: draft-ietf-bier-te-arch > Revision: 08 > Title: Tree Engineering for Bit Index Explicit Replication (BIER-TE) > Document date: 2020-07-13 > Group: bier > Pages: 47 > URL: https://www.ietf.org/internet-drafts/draft-ietf-bier-te-arch-08.txt > Status: https://datatracker.ietf.org/doc/draft-ietf-bier-te-arch/ > Htmlized: https://tools.ietf.org/html/draft-ietf-bier-te-arch-08 > Htmlized: https://datatracker.ietf.org/doc/html/draft-ietf-bier-te-arch > Diff: https://www.ietf.org/rfcdiff?url2=draft-ietf-bier-te-arch-08 > > Abstract: > This memo introduces per-packet stateless strict and loose path > steered replication and forwarding for Bit Index Explicit Replication > packets (RFC8279). This is called BIER Tree Engineering (BIER-TE). > BIER-TE can be used as a path steering mechanism in future Traffic > Engineering solutions for BIER (BIER-TE). > > BIER-TE leverages RFC8279 and extends it with a new semantic for bits > in the bitstring. BIER-TE can leverage BIER forwarding engines with > little or no changes. > > In BIER, the BitPositions (BP) of the packets bitstring indicate BIER > Forwarding Egress Routers (BFER), and hop-by-hop forwarding uses a > Routing Underlay such as an IGP. > > In BIER-TE, BitPositions indicate adjacencies. The BIFT of each BFR > are only populated with BPs that are adjacent to the BFR in the BIER- > TE topology. The BIER-TE topology can consist of layer 2 or remote > (routed) adjacencies. The BFR then replicates and forwards BIER > packets to those adjacencies. This results in the aforementioned > strict and loose path steering and replications. > > BIER-TE can co-exist with BIER forwarding in the same domain, for > example by using separate BIER sub-domains. In the absence of routed > adjacencies, BIER-TE does not require a BIER routing underlay, and > can then be operated without requiring an Interior Gateway Routing > protocol (IGP). > > BIER-TE operates without explicit in-network tree-state and carries > the multicast distribution tree in the packet header. It can > therefore be a good fit to support multicast path steering in Segment > Routing (SR) networks. > > > > > 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. > > The IETF Secretariat
- Re: [Bier] Bier chairs: please ask to publish dra… Toerless Eckert