Re: [spring] Fwd: I-D Action:draft-cheng-spring-srv6-resource-programming-00.txt

Hi R,

Thanks for your comments.

1. The solution in this draft is compliant with the SR architecture and design principles. The SR path selection is still in the ingress node. The End.NRP SID can be used to build SR path at the ingress node similar to the End.X SID.

2. The End.X cannot provide the capability of forwarding resource guarantee which is often required by some important customers. According to the description in Section 4.2 of RFC 8986, End.X forwards to an endpoint with cross-connect to a 39layer-3 adjacency39. While, the End.NRP can be associated with the both adjacency and forwarding resources.

B.R.

Wenying

----邮件原文----发件人：Robert Raszuk  <robert@raszuk.net>收件人：SPRING WG  <spring@ietf.org>抄　送: (无)发送时间：2022-11-08 19:23:35主题：[spring] Fwd: I-D Action:draft-cheng-spring-srv6-resource-programming-00.txtDear WG,This draft is one more attempt to shift SR path selection from ingress node to segment endpoints.
Is such direction  really something Spring wg endorses ? 
Functionally all of this type of proposals can be done on ingress nodes making transit nodes lean and carrying less state just using End.X to direct to segments.
Just a general observation ....
Thx
R.

---------- Forwarded message ---------From: <internet-drafts@ietf.org>Date: Mon, Jul 11, 2022, 11:03Subject: I-D Action: draft-cheng-spring-srv6-resource-programming-00.txtTo:  <i-d-announce@ietf.org>
 A New Internet-Draft is available from the on-line Internet-Drafts directories.         Title           : Network Resource Programming with SRv6         Authors         : Weiqiang Cheng                           Wenying Jiang                           Ran Chen                           Detao Zhao                           Changwang Lin   Filename        : draft-cheng-spring-srv6-resource-programming-00.txt   Pages           : 8   Date            : 2022-07-11 Abstract:    This document defines a new SRv6 network function which can be used    for SRv6 Network Resource Programming. A new SRv6 Endpoint behavior    is used to associate with a set of network resource partition,    called End.NRP. By using the End.NRP SID , the SRv6 policy can    provide the capability of network resources programming. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-cheng-spring-srv6-resource-programming/ There is also an htmlized version available at: https://datatracker.ietf.org/doc/html/draft-cheng-spring-srv6-resource-programming-00 Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt 