Hi All Zzh> I do think BGP signaling for SR P2MP is appropriate. We just need to discuss the two ways and figure out how to proceed. The authors have discussed before though we have not reached consensus.
HB> yes there was discussion and there was no consensus to merge the 2 drafts as their approach is widely different. The authors of this draft have kept the implementation very close to unicast BGP SR Policy for the segment list, which simplifies the implementation and deployment of the technology. As you said there seems to be two way to download this policy and the segment list and we can work on both. Given the solid support I don't see why the adoption of this draft should be delayed because of these arguments. Thanks Hooman From: pim <pim-boun...@ietf.org> On Behalf Of Jeffrey (Zhaohui) Zhang Sent: Friday, March 25, 2022 10:47 AM To: Susan Hares <sha...@ndzh.com>; i...@ietf.org Cc: 'p...@ietf.org' <p...@ietf.org>; 'BESS' <bess@ietf.org> Subject: Re: [pim] [Idr] draft-hb-idr-sr-p2mp-policy (3/10 to 3/24/2022) - Adoption call [+ BESS, PIM] Hi, I realized that in a hurry I did not respond to the specific questions below. Please see zzh> next to the questions. Looks like that there are some comments on BESS/PIM list and I will go through those to see if I have any addition/follow-up on those. Juniper Business Use Only From: Idr <idr-boun...@ietf.org<mailto:idr-boun...@ietf.org>> On Behalf Of Jeffrey (Zhaohui) Zhang Sent: Friday, March 25, 2022 6:30 AM To: Susan Hares <sha...@ndzh.com<mailto:sha...@ndzh.com>>; i...@ietf.org<mailto:i...@ietf.org> Subject: Re: [Idr] draft-hb-idr-sr-p2mp-policy (3/10 to 3/24/2022) - Adoption call [External Email. Be cautious of content] I am sorry for responding late. I somehow missed this. I think we should discuss the relationship with daft-ietf-bess-bgp-multicast-controller further before adopting this. Thanks. Jeffrey Juniper Business Use Only From: Idr <idr-boun...@ietf.org<mailto:idr-boun...@ietf.org>> On Behalf Of Susan Hares Sent: Thursday, March 10, 2022 10:28 AM To: i...@ietf.org<mailto:i...@ietf.org> Subject: Re: [Idr] draft-hb-idr-sr-p2mp-policy (3/10 to 3/24/2022) - Adoption call [External Email. Be cautious of content] IDR WG: If you just wish to respond to the IDR list, you may respond to this email on the adoption call. Cheers, Sue From: Idr [mailto:idr-boun...@ietf.org] On Behalf Of Susan Hares Sent: Thursday, March 10, 2022 9:55 AM To: i...@ietf.org<mailto:i...@ietf.org>; p...@ietf.org<mailto:p...@ietf.org>; bess@ietf.org<mailto:bess@ietf.org> Subject: [Idr] draft-hb-idr-sr-p2mp-policy (3/10 to 3/24/2022) This begins a 2 week WG adoption call for: draft-hb-idr-sr-p2mp-policy from (3/10 to 3/24/2022) You can obtain the draft at: https://datatracker.ietf.org/doc/draft-hb-idr-sr-p2mp-policy/<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-hb-idr-sr-p2mp-policy/__;!!NEt6yMaO-gk!TfiPI1NfecN3db3pj6WZ8paxUr4s6OvmVZ91mapddPFeCkFZJodxFk8aTGCpYg34$> In your comments for this call please consider: Zzh> I want to point out that https://datatracker.ietf.org/doc/draft-ietf-bess-bgp-multicast-controller/ is another way to do the same. I also explained in https://mailarchive.ietf.org/arch/msg/idr/KObeSgKPu3HRbd0ZN7L7fWq_Eto/ why it was in the bess WG. Zzh> In addition, the bess draft supports *other* multicast trees (IP, mLDP besides SR-P2MP) using a consistent way. 1) Does this technology support the SR P2MP features that distributes candidate paths which connect a multicast distribution tree (tree to leaves). Zzh> It is one way to use BGP to support that. The bess draft specifies another way. 2) Is the technology correctly specified for the NLRI (AFI/SAFI) and the tunnel encapsulation attribute additions (sections 2 and 3)? Zzh> The specified SAFI and tunnel encapsulation attribute additions are one way for the BGP signaling for SR-P2MP. The bess draft specifies another way. 3) Does the P2MP policy operation (section 4) provide enough information for those implementing this technology and those deploying the technology? 4) Do you think this multicast technology is a good Place to start for P2MP policy advertisement via BGP? Zzh> Both ways are good place to start. We just need to figure out how to proceed with the two proposals. 5) Do you think this SR P2MP policies should not be advertised via BGP? Zzh> I do think BGP signaling for SR P2MP is appropriate. We just need to discuss the two ways and figure out how to proceed. The authors have discussed before though we have not reached consensus. Zzh> Thanks! Zzh> Jeffrey Cheers, Susan Hares
_______________________________________________ BESS mailing list BESS@ietf.org https://www.ietf.org/mailman/listinfo/bess
