1. Traffic Class Control in MBSS
July 2009
doc.: IEEE /770r0
July 2009
Traffic Class Control in MBSS
Date:
Authors:
Russ Housley (Vigil Security), et. al.
Russ Housley (Vigial Security)

2. Abstract This submission proposes:
July 2009
doc.: IEEE /770r0
July 2009
Abstract
This submission proposes:
Add a comment on Draft 3.02 to address the missing function of controlling traffic classes in MBSS
Meiyuan Zhao (Intel Corporation)
Russ Housley (Vigial Security)

3. Background
Security sub-group examined “RSN capabilities” field in RSN element during comment resolution discussion
PTKSA Replay Counter and GTKSA Replay Counter are used to define the number of replay counters used for protect unicast and broadcast/multicast data traffic
The value is determined by the number of traffic classes supported by BSS
The number of traffic classes is dictated by AP in BSS
MBSS should address the traffic class problem as well
Solution options
Mesh-wide configuration
Negotiated in pairwise basis

4. Motion
Add the comment on traffic class control to comment spreadsheet 11-09/471r10:
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.
Recommended change: The former makes more sense. Need submission to implement the former approach.