Subject: [spring] Path Segment draft updates//FW: New Version Notification for draft-cheng-spring-mpls-path-segment-03.txt

From: Mach Chen <[email-masked]>
Date: Tue, 30 Oct 2018 07:47:12 +0000

Hi,

This version (verison-03) addresses the comments received so far, the updates include:

1. According to the mailing list discussions, there was preference to the "one label" option for SR path identification, hence,  the "two label" option is removed; 
2. According to the suggestion from Sasha, add a new section to support "Nesting of Path Segment", by using Binding SID, it can not only reduce depth of the label stack, but support both sub-path and end-to-end path monitoring; 
3. Many editorial changes;

Additional review and comments are appreciated

Best regards,
Mach

> -----Original Message-----
> From: [email-masked] [mailto:[email-masked]]
> Sent: Friday, October 19, 2018 9:56 AM
> To: Rakesh Gandhi <[email-masked]>; Weiqiang Cheng
> <[email-masked]>; Lei Wang
> <[email-masked]>; Royi Zigler <[email-masked]>;
> Shuangping Zhan <[email-masked]>; Mach Chen
> <[email-masked]>; Han Li <[email-masked]>; Mach Chen
> <[email-masked]>
> Subject: New Version Notification for draft-cheng-spring-mpls-path-
> segment-03.txt
> 
> 
> A new version of I-D, draft-cheng-spring-mpls-path-segment-03.txt
> has been successfully submitted by Mach(Guoyi) Chen and posted to the
> IETF repository.
> 
> Name:		draft-cheng-spring-mpls-path-segment
> Revision:	03
> Title:		Path Segment in MPLS Based Segment Routing Network
> Document date:	2018-10-16
> Group:		Individual Submission
> Pages:		11
> URL:            https://www.ietf.org/internet-drafts/draft-cheng-spring-mpls-
> path-segment-03.txt
> Status:         https://datatracker.ietf.org/doc/draft-cheng-spring-mpls-path-
> segment/
> Htmlized:       https://tools.ietf.org/html/draft-cheng-spring-mpls-path-
> segment-03
> Htmlized:       https://datatracker.ietf.org/doc/html/draft-cheng-spring-mpls-
> path-segment
> Diff:           https://www.ietf.org/rfcdiff?url2=draft-cheng-spring-mpls-path-
> segment-03
> 
> Abstract:
>    A Segment Routing (SR) path is identified by an SR segment list, one
>    or partial segments of the list cannot uniquely identify the SR path.
>    Path identification is a pre-requisite for various use-cases such as
>    performance measurement (PM) of an SR path.
> 
>    This document defines a new type of segment that is referred to as
>    Path Segment, which is used to identify an SR path.  When used, it is
>    inserted at the ingress node of the SR path and immediately follows
>    the last segment of the SR path.  The Path Segment will not be popped
>    off until it reaches the egress node of the SR path.
> 
>    Path Segment can be used by the egress node to implement path
>    identification hence to support various use-cases including SR path
>    PM, end-to-end 1+1 SR path protection and bidirectional SR paths
>    correlation.
> 
> 
> 
> 
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