Re: [spring] draft-ietf-spring-srv6-network-programming: NH=59 action item closure

On Thu, Sep 12, 2019 at 10:02 AM Pablo Camarillo (pcamaril)
<pcamaril@cisco.com> wrote:
>
> Hi all,
>
> Following the comments from IETF105, the working group preferred to allocate a new Next Header value.
>
> The authors would like to propose this diff. Any feedback is welcome.
>
> <OLD>
>
>    9.  IANA Considerations
>
>
>
>
>
>       This document requests the following new IANA registries:
>
> </OLD>
>
>
>
>
>
> <NEW>
>
>    9.  IANA Considerations
>
>
>
> This document requests IANA to allocate a new IP Protocol Number value for “SRv6 payload” with the following definition:
>
> The value TBD in the Next Header field of an IPv6 header or any extension header indicates that the payload content is identified via the segment identifier in the IPv6 Destination Address.
>
This seems like an extremely narrow use case to justify an IP Protocol
Number allocation. If this is the route taken, I would suggest to
define something more generic like "Interpreted" which could mean that
there is a next header, but it's interpretation requires information
elsewhere in the packet. That way the number could potentially be used
in other contexts than just SR.

Tom

>
>
>       This document requests the following new IANA registries:
>
> </NEW>
>
>
>
> We would propose to submit a revision with this text on the IANA section of NET-PGM beginning of next week.
>
> Thanks,
> Pablo.
>
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