Re: [spring] Request for WG review and adoption of draft-li-spring-srv6-path-segment-04.txt
"Weiqiang Cheng" <chengweiqiang@chinamobile.com> Tue, 12 November 2019 04:42 UTC
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From: Weiqiang Cheng <chengweiqiang@chinamobile.com>
To: 'SPRING WG List' <spring@ietf.org>, "'Chengli (Cheng Li)'" <chengli13@huawei.com>
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Date: Tue, 12 Nov 2019 12:42:02 +0800
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Subject: Re: [spring] Request for WG review and adoption of draft-li-spring-srv6-path-segment-04.txt
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Hi Group, >From carriers' point view, the application scenario for the Path Segment is valid. It can provide some important functions as follows. 1. E2E performance monitoring. SID list information does not always include all the information of the Path, for example the reduce mode. Even if the SID list carries all the path information, it is too long in terms of implementation. 2.Based on the path segment, we can provide such as bi-directional LSP easily. B.R. Weiqiang Cheng -----Original Message----- From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Chengli (Cheng Li) Sent: Wednesday, November 06, 2019 9:38 PM To: 'SPRING WG List' <spring@ietf.org> Subject: [spring] Request for WG review and adoption of draft-li-spring-srv6-path-segment-04.txt Hi SPRING, We just updated the draft-li-spring-srv6-path-segment, major updates: * add text to clarify why do we need SRv6 Path Segment: The segment list may not be a good key to identify an SRv6 path, since the the length of segment list is flexible according to the number of SIDs. Also, the length of SID list will be too long to be a key when it contains many SIDs. For instance, if packet A uses the SRH with 3 SIDs while Packet B uses the SRH with 10 SIDs, the key to identify these two paths will be a 384-bits value and a 1280-bits value. A fixed length Path ID at a fixed location will help in processing performance. * move encoding part to draft-li-6man-srv6-path-segment-encap-01 Since the text of this document is stable and mature, we hope to have a WG review, and we request for WG adoption. Any questions or comments are welcome! Best regards, Cheng -----Original Message----- From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] Sent: Monday, November 04, 2019 10:53 PM To: Rakesh Gandhi <rgandhi@cisco.com>; Lizhenbin <lizhenbin@huawei.com>; Weiqiang Cheng <chengweiqiang@chinamobile.com>; Dhruv Dhody <dhruv.ietf@gmail.com>; Mach Chen <mach.chen@huawei.com>; Dongjie (Jimmy) <jie.dong@huawei.com>; Mach Chen <mach.chen@huawei.com>; Chengli (Cheng Li) <chengli13@huawei.com> Subject: New Version Notification for draft-li-spring-srv6-path-segment-04.txt A new version of I-D, draft-li-spring-srv6-path-segment-04.txt has been successfully submitted by Cheng Li and posted to the IETF repository. Name: draft-li-spring-srv6-path-segment Revision: 04 Title: Path Segment for SRv6 (Segment Routing in IPv6) Document date: 2019-11-04 Group: Individual Submission Pages: 9 URL: https://www.ietf.org/internet-drafts/draft-li-spring-srv6-path-segment-04.tx t Status: https://datatracker.ietf.org/doc/draft-li-spring-srv6-path-segment/ Htmlized: https://tools.ietf.org/html/draft-li-spring-srv6-path-segment-04 Htmlized: https://datatracker.ietf.org/doc/html/draft-li-spring-srv6-path-segment Diff: https://www.ietf.org/rfcdiff?url2=draft-li-spring-srv6-path-segment-04 Abstract: Segment Routing (SR) allows for a flexible definition of end-to-end paths by encoding paths as sequences of sub-paths, called "segments". Segment routing architecture can be implemented over an MPLS data plane as well as an IPv6 data plane. Further, Path Segment has been defined in order to identify an SR path in SR-MPLS networks, and used for various use-cases such as end- to-end SR Path Protection and Performance Measurement (PM) of an SR path. Similar to SR-MPLS, this document defines the Path Segment in SRv6 networks in order to identify an SRv6 path. 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 _______________________________________________ spring mailing list spring@ietf.org https://www.ietf.org/mailman/listinfo/spring
- [spring] Request for WG review and adoption of dr… Chengli (Cheng Li)
- Re: [spring] Request for WG review and adoption o… Weiqiang Cheng