Thanks Ketan. It should be fine to keep the latest text to disallow 0.

On Wed, Jan 26, 2022 at 8:31 PM Ketan Talaulikar <[email protected]>
wrote:

> Hi Nandan,
>
> The comment for clarification on zero value came during the Last-Call
> review:
> https://mailarchive.ietf.org/arch/msg/spring/d7XCsWsbiTyE588nHNrKhl4woYQ/
>
> There have been previous discussions/suggestions on the list for the color
> value 0. I am not able to readily find those threads.
>
> We can revert this change to include the value 0 as a valid color if there
> are concerns. Please let us know.
>
> The draft-ietf-idr-segment-routing-te-policy points to the SPRING draft
> for validation so there would not need to be any changes in there.
>
> Thanks,
> Ketan
>
>
> On Wed, Jan 26, 2022 at 11:22 PM Nandan Saha <[email protected]> wrote:
>
>> Hi folks,
>>  revision 15 has:
>> <quote>
>>   The color is an unsigned *__non-zero__* 32-bit numerical
>> </quote>
>>
>> This seems like a backwards incompatible change since all this while 0
>> was a valid color.
>> Has this been discussed on the list?
>> Also, are we going to make changes to
>> draft-ietf-idr-segment-routing-te-policy to define the handling for NLRIs
>> that have color set to 0?
>>
>> Thanks,
>> Nandan
>>
>> On Wed, Jan 26, 2022 at 7:11 AM <[email protected]> wrote:
>>
>>>
>>> A New Internet-Draft is available from the on-line Internet-Drafts
>>> directories.
>>> This draft is a work item of the Source Packet Routing in Networking WG
>>> of the IETF.
>>>
>>>         Title           : Segment Routing Policy Architecture
>>>         Authors         : Clarence Filsfils
>>>                           Ketan Talaulikar
>>>                           Daniel Voyer
>>>                           Alex Bogdanov
>>>                           Paul Mattes
>>>         Filename        : draft-ietf-spring-segment-routing-policy-15.txt
>>>         Pages           : 39
>>>         Date            : 2022-01-26
>>>
>>> Abstract:
>>>    Segment Routing (SR) allows a headend node to steer a packet flow
>>>    along any path.  Intermediate per-path states are eliminated thanks
>>>    to source routing.  The headend node steers a flow into an SR Policy.
>>>    The packets steered into an SR Policy carry an ordered list of
>>>    segments associated with that SR Policy.  This document details the
>>>    concepts of SR Policy and steering into an SR Policy.
>>>
>>>
>>> The IETF datatracker status page for this draft is:
>>>
>>> https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-policy/
>>>
>>> There is also an htmlized version available at:
>>>
>>> https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-15
>>>
>>> A diff from the previous version is available at:
>>>
>>> https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-segment-routing-policy-15
>>>
>>>
>>> Internet-Drafts are also available by rsync at rsync.ietf.org:
>>> :internet-drafts
>>>
>>>
>>> _______________________________________________
>>> spring mailing list
>>> [email protected]
>>> https://www.ietf.org/mailman/listinfo/spring
>>>
>>
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