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Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)

Andrew Alston <Andrew.Alston@liquidtelecom.com> Thu, 05 September 2019 19:35 UTC

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From: Andrew Alston <Andrew.Alston@liquidtelecom.com>
To: Robert Raszuk <robert@raszuk.net>, Fernando Gont <fgont@si6networks.com>
CC: 6man WG <ipv6@ietf.org>, Alexandre Petrescu <alexandre.petrescu@gmail.com>, Robert Raszuk <rraszuk@gmail.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)
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Date: Thu, 05 Sep 2019 19:35:17 +0000
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Subject: Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)
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Even if you remove the reference – you still have problems in 4.13 and 4.21 which manipulate the headers.

I also point out that it’s rather hard to argue that headers aren’t being inserted when the network programming draft is explicitly mentioned as a normative reference for draft-ietf-lsr-isis-srv6-extensions-02 in section 4.3, and in there, it specifies a type to specify the maximum number of SID’s to be inserted as part of the T.insert behavior – as per section 5.2 – which explicitly refers to inserting SRH in transit.

Andrew


From: spring <spring-bounces@ietf.org> On Behalf Of Robert Raszuk
Sent: Thursday, 5 September 2019 22:24
To: Fernando Gont <fgont@si6networks.com>
Cc: 6man WG <ipv6@ietf.org>; Alexandre Petrescu <alexandre.petrescu@gmail.com>; Robert Raszuk <rraszuk@gmail.com>; spring@ietf.org
Subject: Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)

* draft-ietf-spring-srv6-network-programming has a normative reference
to draft-voyer-6man-extension-header-insertion

* draft-voyer-6man-extension-header-insertion is about EH insertion

* EH insertion is forbidden by RFC8200

We have wasted way too much time and energy with all the methafores and
curious interpretations of standards by folks pushing and/or supporting
EH insertion, really.

Please notice that version -00 which was accepted by the WG does not have such normative reference.

https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-00<https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-00>

It is not even listed as informative reference.

So it can be removed tomorrow if it bothers you :)

Cheers,
R.

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