Re: [spring] SRH scratch space (was Re: Question about SRv6 Insert function)

Robert Raszuk <robert@raszuk.net> Tue, 10 December 2019 20:42 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Tue, 10 Dec 2019 21:42:21 +0100
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To: Erik Kline <ek.ietf@gmail.com>
Cc: Suresh Krishnan <suresh.krishnan@gmail.com>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, "spring@ietf.org" <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>, draft-voyer-6man-extension-header-insertion <draft-voyer-6man-extension-header-insertion@ietf.org>, Fernando Gont <fernando@gont.com.ar>, Brian E Carpenter <brian.e.carpenter@gmail.com>, draft-ietf-spring-srv6-network-programming <draft-ietf-spring-srv6-network-programming@ietf.org>
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Subject: Re: [spring] SRH scratch space (was Re: Question about SRv6 Insert function)
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The issue is that RFC8200 forbids even modification to any EH unless the
node is a destination node in top most IPv6 header.


If there were no resolution to the insertion question vis a vis RFC 8200,
> then would it then suffice to recommend that ingress nodes should include
> some padding for these non-SR midpoints to play with (iff. the network has
> such midpoints), and otherwise abide by RFC 8200?
>