Thanks!

[RP] All the P-tunnels instantiated by different Candidate Paths of an SR P2MP 
Policy have either SR-MPLS P2MP Tree or SRv6 P2MP Tree.

I was looking for something like this. Is this defined somewhere (maybe in the 
policy draft, I did not check)? If not, is it worth adding?

cheers,
    Eduard


________________________________
From: Rishabh Parekh <[email protected]>
Sent: Tuesday, January 13, 2026 18:58
To: Metz, Eduard <[email protected]>
Cc: [email protected] <[email protected]>; [email protected] <[email protected]>; 
[email protected] <[email protected]>
Subject: Re: [bess] Re: WG review requested on 
draft-ietf-bess-mvpn-evpn-sr-p2mp-17, ending Monday 19th

Eduard,
Thanks for the review. Comments inline @ [RP]

On Tue, Jan 13, 2026 at 7:03 AM 
<[email protected]<mailto:[email protected]>> wrote:
For what it's worth, the change in structure I think has improved readability.

Few small points I noted:
There is a type in section 3.1.3: "carried in AFI/SAFI 1/129 (MVPN-IPv4) or 
1/129 (MVPN-IPv6)", should be "... 2/129 (MVPN-IPv6)"

[RP] Good catch. Will fix it in the next revision.


In section 3.2.1 is stated:
"For segmented P-tunnels, each segment can be instantiated by a different 
technology."

Instead of "different technology" would it be better to state "different tunnel 
type"? I assume at least this refers to the tunnel type.

[RP] Good suggestion. We will change the text in the next revision.

Related to this, should some similar text be included for regular, 
non-segmented tunnels? Are the tunnel-types of all CPs and tunnel instances in 
a policy assumed to be the same, or could these be different?

[RP] All the P-tunnels instantiated by different Candidate Paths of an SR P2MP 
Policy have either SR-MPLS P2MP Tree or SRv6 P2MP Tree.

Segmented P-tunnels are segmented and stitched at a boundary, say an ASBR or 
ABR (for seamless MPLS like deployments). The first segment can be SR P2MP 
P-tunnel type, the second segment can be Ingress Replication P-tunnel type, the 
third can be MLDP P-tunnel type and so on. OTOH, non-segmented P-tunnels have 
one P-tunnel of a given type (across the boundary devices). I hope this 
clarifies the distinction between these two ways to instantiate P-tunnels.


cheers,
    Eduard



________________________________
From: Stephane Litkowski (slitkows) 
<[email protected]<mailto:[email protected]>>
Sent: Monday, January 12, 2026 10:57
To: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>>
Cc: '[email protected]<mailto:[email protected]>' 
<[email protected]<mailto:[email protected]>>
Subject: [bess] WG review requested on draft-ietf-bess-mvpn-evpn-sr-p2mp-17, 
ending Monday 19th


Hi WG,



As result of the IESG review, draft-ietf-bess-mvpn-evpn-sr-p2mp has been 
modified significantly.

We would like to ensure that there is still consensus on the document text 
after these changes.



Please carefully read the document and provide any objection/comment by January 
19th.



https://author-tools.ietf.org/iddiff?url1=draft-ietf-bess-mvpn-evpn-sr-p2mp-15&url2=draft-ietf-bess-mvpn-evpn-sr-p2mp-17&difftype=--html





Thanks in advance,



Stephane

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