Traffic Class Control in MBSS July 2009 doc.: IEEE P802.11-09/661r8 July 2009 Traffic Class Control in MBSS Date: 2009-07-15 Authors: Name Address Affiliation Phone Email Meiyuan Zhao 2200 Mission College Blvd, Santa Clara, CA 95054 Intel Corporation +1-408-653-5517 Meiyuan.zhao@intel.com Slide 1 Meiyuan Zhao, Intel Corporation Donald Eastlake 3rd, Stellar Switches

Abstract This document propose to add a comment to address the traffic class control problem in MBSS

Background Issue comes up from security sub-group discussion today PTKSA replay counter and GTKSA replay counter fields are used to inform STAs how many replay counters to use for protecting data traffic The number is determined by the number of traffic classes In BSS, AP dictates the numbers MBSS need to address the problem of controlling traffic classes Solution options Make it mesh-wide configuraiton Negotiate in pairwise basis

Motion Add one comment to 11-09/0471r10 comment spreadsheet Comment: mesh needs to figure out how to deal with traffic classes. Each needs a replay counter for protection. In infrastructure mode, it's dictated by AP. But in mesh, either need to define it as mesh-wide configuration, or let mesh STAs to negotiate in pairwise basis. The former makes more sense. Recommended change: Need submission to implement the former approach.