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Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming

Fernando Gont <fgont@si6networks.com> Wed, 11 December 2019 03:33 UTC

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From: Fernando Gont <fgont@si6networks.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>, 'SPRING WG List' <spring@ietf.org>
Cc: "6man@ietf.org" <6man@ietf.org>
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Date: Tue, 10 Dec 2019 21:29:47 -0500
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/dRPf7D60IfxSLY0KRL2QclykWTQ>
Subject: Re: [spring] WGLC - draft-ietf-spring-srv6-network-programming
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On 10/12/19 21:23, Fernando Gont wrote:
> Joel,
> 
> On 10/12/19 19:49, Joel M. Halpern wrote:
>> Fernando, I really wish I could agree with you.
>> But I can't.
>>
>> In 8200, it is clear that the meaning fo "Destination Address" for an
>> IPv6 packet is the value placed in the IPv6 destination address field.
> 
> One could indeed argue that the wording in RFC8200 could have been
> better. However, the intent is clear, and also since RFC8200 does not
> specify any routing header type, in the context of RFC8200 packets
> there's no possible destination other than the ultimate destination.
> 
> Maybe an errata is warranted.

FWIW, Appendix B notes:

   o  Clarified that extension headers (except for the Hop-by-Hop
      Options header) are not processed, inserted, or deleted by any
      node along a packet's delivery path.

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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