WG Overview - Chairs Two yang models in RFC editors queue Two drafts publication requested pim-dr-improvement returned to the wg, needs more work. null-register-packing also returned to the wg for more work. pim-igmp-md-proxy-yang nothing new since October. pim-assert-packing new revision discussed today. pim-sr-p2mp-policy new revision discussed today progressing igmpv3/mldv2 to internet standard. survey done. looking for volunteers to work on revising IGMPv3/MLDv2 RFC's. draft-ietf-pim-dr-improvement - Mankamana Next step is more wg review before progressing. draft-mankamana-pim-bdr - Mankamana Lenny - this concept of priority and preemption is not unique to pim: vrrp, rsvp with backup paths, etc. can we leverage from those? Was it protocol level stuff or vendor implementations, those could be good examples. leave it up to implementations? Alvaro - what has me confused is talking about two solutions that are basically the same thing. A good argument has been made on how the previous draft isn't needed. It would be nice if all the solutions was considered in one draft. We seem to be circuling around implementations, first resolve if we want single or multiple solutions. And then understand how they interact. Stig - I agree. We initially only had one sticky DR in other draft, now we have two proposals. Do we actually need two solutions? Are there different use cases where one is better then the other? Alvaro - I'm not advocating for one or two, the wg to decide. maybe we define multiple use cases. Needs more coordination. Stig - if the wg decides we only need one solution that covers all the use cases we probably only want to publish one of them. Mike - some may want to have a hello option and others may not. And right now we only have one wg document. Let's say we do adopt this draft, should we hold off on progressing both documents until they are both progressed together? Alvaro - That would be nice. they are not dependent on each other. they don't have to progress together. progressing close would be nice. Stig - we shouldn't progress any document until we carefully decide what solution is best or if we want both solutions. Lets compare both options. Mike - let's poll for adoption. Stig - just because we adopt both documents doesn't mean we publish both documents. Poll - 9 in favor and 2 against. Will take to the list. draft-vgovindan-pim-jp-extensions-lisp - Prasad Govindan Stig - better to have a new attribute instead of overloading the existing one. Acee - whats the relationship with the lisp wg? Where should this be progressed? It's sort of like mvpn and bess owns that. This should be owned by lisp. Prasad - yes should be presented in lisp next wg. Should be progressed in lisp or pim? The type he is proposing is similar to the unicast type. Mike - the lisp charter calls out multicast and pim so they may want to work on this, Definitely need to coordinate with them. Alvaro - The difference between this and mvpn is the details. This is a very short draft to request the new type. Coordinate with lisp, will need to add more details. If they want it and we can give them a type then its ok to progress it in pim if that's all that the draft will say. Stig - exactly what happened last time, main work done in pim but also discussed in lisp to make sure they thought it was a good idea. Sandy - is this for *,g and/or s,g. Prasad - both. Mike - We will reach out to lisp chairs. Alvaro - lisp didn't meet this week but will have an interim so please present there. draft-ietf-pim-sr-p2mp-policy - Hooman Bidgoli Should we move hb-spring-sr-p2mp-policy-yang to pim? Mike - We discussed this with spring chairs and they want to keep it in spring unless it was broke up into two documents one for replication segment and one for p2mp policy. One done here and one done there. Hooman - will discuss with authors. Mike - only addition is SRv6 in the appendix, will it stay there? Hooman - likely yes. draft-ietf-pim-assert-packing - Yisong Liu Stig - This looks good. If you have assert timers that expire at the same time, don't want to send asserts too late, earlier is ok. If you have many asserts, you could send all of them now and they would then be in sync. Stig - should we consider wglc? Yisong - not ready for last call. Stig - read through it again and it's in good shape. draft-ietf-pim-null-register-packing - Ananya Gopal Stig - there were comments about the downgrade scenario. We could do that during wglc. Mike - when the new rev is submitted it sounds like we need to issue another wglc? Stig - probably should at least have those who have reviewed it previously to review. Mike - we will ping reviewers and then issue wglc after next rev. draft-chen-pim-srv6-p2mp-path - Huaimo Chen Stig - what the relationship should be with spring. Huaimo - sent a request to spring and waiting for comments. Mike - spring is so busy and higher priorities and mcast is not a high priority which is why we are working on this topic in pim. Stig - would be good to hear whether this update addressed concerns. People were in favor and some against. Would be good to see if people have changed their minds. Mike - (individual). we already have a good solution in pim do we need another solution? My view we should be open to multiple solutions if they are technically sound. we do need to get buy in from spring regardless. Stig - Either way its important to get comments and keep improving document. Will ask on the mailing list for input and reach out to spring again.