Charter Item on IGMP/MLD Tuning Chairs IETF 79 1

IGMP/MLD tuning milestone Are we ready to adopt one of these drafts? –draft-asaeda-multimob-igmp-mld- optimization-04.txtdraft-asaeda-multimob-igmp-mld- optimization-04.txt –draft-wu-multimob-igmp-mld-tuning-03.txtdraft-wu-multimob-igmp-mld-tuning-03.txt More specific questions follow 2

“Behavior Tuning” Explicit Tracking Report suppression for the hosts Query suppression for the routers Minimizing Query Frequency by increasing interval each time Switching Between Unicast Query and Multicast Query –Is this switching protocol extension? 3

“Behavior Tuning” -2 Using Unicast Query in addition to General Query Retransmitting the General Query General Query Suppression if no receiver 4

Timer Tuning Tuning Response Delay according to link type and status –Is this protocol change? Triggering reports and queries quickly during handover –Is this protocol change? 5

Timer Tuning -2 [Query Interval] –125 seconds explicit tracking & unicast General Query –180 seconds explicit tracking & multicast General Query [Query Response Interval] –5 seconds explicit tracking & unicast General Query –10 seconds explicit tracking & multicast General Query [Robustness Variable] 2 [Startup Query Interval] 1 second 6

Timer Tuning -2 7 (*) With Unicast General Query

Timer Tuning -3 Do we need measurements to verify the gains from these settings? 8

Next Steps Is there consensus –Make draft-wu-multimob-igmp-mld-tuning-03 a WG draft? 9

Next Steps If not, Is there consensus –Make draft-asaeda-multimob-igmp-mld- optimization-04a a WG draft? 10

Next Steps If not, Are the two drafts complementing each other? Is there consensus in –Merge draft-wu-multimob-igmp-mld-tuning-03 with draft-asaeda-multimob-igmp-mld- optimization-04a 11

Next Steps If not, Is there consensus –Move IGMP/MLD tuning to the next charter together with IGMP/MLD extensions? 12