Re: [spring] WG Last Call draft-ietf-spring-nsh-sr

James Guichard <james.n.guichard@futurewei.com> Thu, 13 May 2021 11:19 UTC

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From: James Guichard <james.n.guichard@futurewei.com>
To: Dhruv Dhody <dhruv.ietf@gmail.com>
CC: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "spring@ietf.org" <spring@ietf.org>, "draft-ietf-spring-nsh-sr@ietf.org" <draft-ietf-spring-nsh-sr@ietf.org>
Thread-Topic: [spring] WG Last Call draft-ietf-spring-nsh-sr
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Subject: Re: [spring] WG Last Call draft-ietf-spring-nsh-sr
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Hi Dhruv,

Inline.

From: Dhruv Dhody <dhruv.ietf@gmail.com>
Sent: Thursday, May 13, 2021 2:11 AM
To: James Guichard <james.n.guichard@futurewei.com>
Cc: bruno.decraene@orange.com; spring@ietf.org; draft-ietf-spring-nsh-sr@ietf.org
Subject: Re: [spring] WG Last Call draft-ietf-spring-nsh-sr

Hi Jim,


- Section 4,

   The behavior of remembering the SR stack occurs at the end of the
   regularly defined logic.  The behavior of reattaching the stack
   occurs before the SR process of forwarding the packet to the next
   entry in the segment-list.  Both behaviors are further detailed in
   section 5.

The SR stack reads as SR-MPLS specific. Can this be generalized or perhaps text added for SRv6 as well?

Jim> I am not sure where (or what text) to add to make this clearer. Do you have any suggestions?


Dhruv> Perhaps we can add "(SR header (SRH) in case of SRv6)" alongside the term SR stack. Another option would be using a generic term like "segment list" instead of a stack (or something similar)?


Jim> ack and updated the document with “segment list” instead of “stack”.

- Should there be some reference to 3GPP in the first paragraph Section 1.1?

Jim> do you have a suggested reference/s ?


Dhruv> My guess would be [TS.29.061]. Better check with a 3GPP expert :)

Jim> thanks I will check this out.

Thanks!
Dhruv