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Re: [spring] 6MAN WGLC: draft-ietf-6man-sids

Erik Kline <ek.ietf@gmail.com> Mon, 17 October 2022 04:12 UTC

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From: Erik Kline <ek.ietf@gmail.com>
Date: Sun, 16 Oct 2022 21:12:21 -0700
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To: Suresh Krishnan <suresh.krishnan@gmail.com>
Cc: Eduard Metz <etmetz@gmail.com>, SPRING WG List <spring@ietf.org>, 6man <ipv6@ietf.org>, spring-chairs@ietf.org, draft-ietf-6man-sids.authors@ietf.org, 6man Chairs <6man-chairs@ietf.org>
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Subject: Re: [spring] 6MAN WGLC: draft-ietf-6man-sids
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>
> With regard to RFC4291 I assume the main observation is that the SRv6 SID
> structure does not match with the structure of RFC4291, in particular the
> interface ID part. A small discussion on the other aspects of RFC4291 could
> be added to further clarify this (as done for the subnet-router anycast
> address). In theory, if the SRv6 SID would start with "000" the interface
> ID would not even be a problem.
>
>
> The actual block to be allocated will come from IANA but there are a whole
> bunch of allocations in this space that are used for special purposes
> already and the goal might be to make this prefix separate from the
> existing used blocks. If you have a suggestion for a recommendation from
> the WG, feel free to put one up.
>

Looking at the IANA IPv6 Special-Purpose Address Registry, walking down
from the top, and assuming we request a unicast /16, I think the next block
might be fbff::/16.  But I might be misreading things.

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