[spring] 5.2. T.Encaps: Transit with encapsulation in an SRv6 Policy

Rajesh M <mrajesh@juniper.net> Wed, 16 October 2019 05:24 UTC

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From: Rajesh M <mrajesh@juniper.net>
To: SPRING WG List <spring@ietf.org>, "cf@cisco.com" <cf@cisco.com>, "pcamaril@cisco.com" <pcamaril@cisco.com>
Thread-Topic: 5.2. T.Encaps: Transit with encapsulation in an SRv6 Policy
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Date: Wed, 16 Oct 2019 05:24:29 +0000
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Subject: [spring] 5.2. T.Encaps: Transit with encapsulation in an SRv6 Policy
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here S1 must be End SID only, It cannot be End.X ?
since forward along the shortest path to S1.

5.2.  T.Encaps: Transit with encapsulation in an SRv6 Policy


1.   push an IPv6 header with its own SRH (S3, S2, S1; SL=2)
2.   set outer IPv6 SA = T and outer IPv6 DA = S1
3.   set outer payload length, traffic class and flow label    ;; Ref1,2
4.   update the Next-Header value                              ;; Ref1
5.   decrement inner Hop Limit or TTL                          ;; Ref1
6.   forward along the shortest path to S1


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