[pim] Re: Mahesh Jethanandani's No Objection on draft-ietf -pim-sr-p2mp-policy-17: (with COMMENT)

Mahesh,

On Tue, Aug 19, 2025 at 10:39 AM Mahesh Jethanandani <
[email protected]> wrote:

> HI Rishabh,
>
> See my responses with [mj].
>
>
>> ----------------------------------------------------------------------
>> COMMENT:
>> ----------------------------------------------------------------------
>>
>> Section 2.3, paragraph 0
>> >    An SR P2MP Policy has one or more CPs.  Identification of a CP in
>> >    context of the P2MP Policy is as specified in Section 2.9 of
>> >    [RFC9256].  A CP may include topological and/or resource constraints
>> >    and optimization objectives which influence the computation of P2MP
>> >    tree.  The Root node selects the active Candidate Path based on the
>> >    tie breaking rules defined in[RFC9256].
>>
>> Is it that the policy has one or more CPs, or that the policy
>> defines/discovers/computes one or more CPs and it is the SR network that
>> has
>> one or more CPs?
>>
>
> [RP] Candidate Path is defined in RFC 9256 as " A candidate path is the
> unit for signaling of an SR Policy to a headend....". In this document, a
> Candidate Path is a unit of signalling a (computed) tree instances of an SR
> P2MP Policy to the Root, Intermediate and Leaf nodes. CPs of an SR P2MP
> Policy are provisioned with constraints and/or objectives and the PCE then
> computes the tree instances of the CP. An ACtive CP is selected and the
> active tree instance of that CP carries traffic from the ROOT. An SR
> network can be said to have one or tree instances of the Candidate Paths of
> SR P2MP policies.
>
>
> [mj] Thanks for the clarification. I will be good with the text once it is
> added.
>
>
[RP2] I have made some changes in the Introduction to explain. Text in
section 2,3 already describes the active CP and active instance. Let me
know if you are satisfied with CP overall in the next revision of the
document.

Thanks,
Rishabh.

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