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-optimizatio

n-04.txt

– draft-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

7(*) With Unicast General Query

Query IntervalQuery Resp. Interval

Rob. Var.LMQC/LLQC

Default 125 10 2 Rob. Var.

WiFi Light 125(*) 10 2 2

WiFi Heavy 150(*) 10 2 2

WiMAX Light 60 5 1 1

WiMAX Heavy 90 10 1 1

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