Re: [Pce] New Version Notification for draft-chen-pce-bier-10.txt

chen.ran@zte.com.cn Tue, 28 February 2023 08:01 UTC

Date: Tue, 28 Feb 2023 16:01:23 +0800
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Subject: Re: [Pce] New Version Notification for draft-chen-pce-bier-10.txt
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Hi Chairs and WG,


We have updated https://datatracker.ietf.org/doc/draft-chen-pce-bier/ based on the comments from IETF meeting. Any comments are welcome.



The current PCE-BIER related drafts are as follows：



https://datatracker.ietf.org/doc/draft-chen-pce-bier/:


This document specifies extensions to the Path Computation Element Protocol (PCEP) that allow a PCE to compute and initiate the path for the BIER-TE. This draft mainly focuses on the path calculation of BIER-TE and The controller distributes a BIER-TE path to the BFIR


via protocol extensions like the PCEP [https://datatracker.ietf.org/doc/draft-chen-pce-bier/ ]  or BGP BIER-TE[https://datatracker.ietf.org/doc/draft-ietf-idr-bier-te-path/] .The two functions are used for the communication between controller and BFIR. 






https://datatracker.ietf.org/doc/draft-chen-pce-pcep-extension-pce-controller-bier/:


https://datatracker.ietf.org/doc/draft-chen-pce-controller-bier-te/:


These two drafts  focus on the  central controller scenario,specify a new mechanism where PCE allocates the BIER/BIER-TE information centrally and uses PCEP to distribute them to all nodes (include BFR, BFIR and BFER),  for example the BFR-ID allocation, the download of BIFT, then PCC generate a "Bit Index Forwarding Table"(BIFT). These functions are used for the situation which there is no IGP running in the BIER domain.


Of course, we can also directly distribute BIFT through the YANG model[see BIER YANG and BIER-TE YANG].






Since there are many southbound interface protocols(include PCE, BGP, BGP-LS, YANG), we would like to write an informational draft to introduce the relationship between these drafts and how to use.



















Original



From: internet-drafts@ietf.org <internet-drafts@ietf.org>
To: Aijun Wang <wangaj3@chinatelecom.cn>;Fengwei Qin <qinfengwei@chinamobile.com>;Huaimo Chen <huaimo.chen@futurewei.com>;陈然00080434;Senthil Dhanaraj <senthil.dhanaraj.ietf@gmail.com>;张征00007940;
Date: 2023年02月28日 10:53
Subject: New Version Notification for draft-chen-pce-bier-10.txt



A new version of I-D, draft-chen-pce-bier-10.txt
has been successfully submitted by Ran Chen and posted to the
IETF repository.
 
Name:        draft-chen-pce-bier
Revision:    10
Title:        PCEP Extensions for BIER-TE
Document date:    2023-02-28
Group:        Individual Submission
Pages:        16
URL:            https://www.ietf.org/archive/id/draft-chen-pce-bier-10.txt
Status:         https://datatracker.ietf.org/doc/draft-chen-pce-bier/
Htmlized:       https://datatracker.ietf.org/doc/html/draft-chen-pce-bier
Diff:           https://author-tools.ietf.org/iddiff?url2=draft-chen-pce-bier-10
 
Abstract:
   Bit Index Explicit Replication (BIER)-TE shares architecture and
   packet formats with BIER as described in [RFC8279].  BIER-TE forwards
   and replicates packets based on a BitString in the packet header, but
   every BitPosition of the BitString of a BIER-TE packet indicates one
   or more adjacencies as described in [RFC9262].  BIER-TE Path can be
   derived from a Path Computation Element (PCE).
 
   This document specifies extensions to the Path Computation Element
   Protocol (PCEP) that allow a PCE to compute and initiate the path for
   the BIER-TE.
 
                                                                                   
 
 
The IETF Secretariat

Re: [Pce] New Version Notification for draft-chen… chen.ran