Re: [spring] Network Programming - Penultimate Segment Popping

"Darren Dukes (ddukes)" <ddukes@cisco.com> Thu, 05 December 2019 16:50 UTC

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From: "Darren Dukes (ddukes)" <ddukes@cisco.com>
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
CC: SPRING WG <spring@ietf.org>, 6man <6man@ietf.org>
Thread-Topic: Network Programming - Penultimate Segment Popping
Thread-Index: AdWqwAHVKZEn9oMNQKewBt9OvTlYXgAzAekA
Date: Thu, 5 Dec 2019 16:50:03 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/V9BnqbXEgEdLbSRCfXQK3OcDdNA>
Subject: Re: [spring] Network Programming - Penultimate Segment Popping
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Hello Ron, I believe this is the fifth time you have raised this comment in 6man and/or spring.
The comment has been addressed in earlier iterations.

Let me recap.

With the PSP behavior, the SRH is only removed by the node identified in the destination address field of the IPv6 header.

That destination address was placed in the SRH by the SR Source node, fully expecting the behavior.

Thanks
  Darren

Iterations:
[2019-09-06] https://mailarchive.ietf.org/arch/msg/spring/7zMgIwEY9AipZCCGO9KnT2CGH3o
[2019-09-27] https://mailarchive.ietf.org/arch/msg/spring/4_Slu3kkHwduZZPFJJmRUkmoTVo
[2019-10-14] https://mailarchive.ietf.org/arch/msg/spring/u536YH4tv7kKRq_b9_x9gBYpO9c
[2019-10-21] https://mailarchive.ietf.org/arch/msg/spring/4pikRli_HSECun9AbwfpmOF5KLI
[2019-12-04] https://mailarchive.ietf.org/arch/msg/spring/oDWLbRDqKCaF5Xa-QvKY6mk_D5E


On Dec 4, 2019, at 11:37 AM, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org> wrote:

Pablo,

It seems to me that the following are equally controversial:


  *   A transit node inserting a Routing header
  *   A transit node removing a Routing header


We have agreed to move discussion of RH insertion out of the Network Programming draft and into another draft. Shouldn’t discussion of RH removal be treated similarly.

This comment applies to Penultimate Segment Popping (PHP) in the Network Programming draft.

                                                                 Ron


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