Mesh Frame Formats Date: 2007-06-13 Authors: June 2007 March 2007 doc.: IEEE 802.11-07/0550r3 June 2007 Mesh Frame Formats Date: 2007-06-13 Authors: Guenael Strutt, Motorola et al. Guenael Strutt, Motorola et al.

March 2007 doc.: IEEE 802.11-07/0550r3 June 2007 Abstract Many comments were raised during LB93 about the definition of new frame format types and subtypes in D1.00. This presentation identifies possible resolutions to comments classified under the General identifiers G11. Ideally, mesh frames should be compatible with frames and features from other task groups, e.g. TGn, TGv, TGw. This presentation addresses all of the above Guenael Strutt, Motorola et al. Guenael Strutt, Motorola et al.

Proposed Resolution of General Comments on Frame Formats (11-07/799) March 2007 doc.: IEEE 802.11-07/0550r3 June 2007 Proposed Resolution of General Comments on Frame Formats (11-07/799) CIDs in General Category G11: Need clarification on compatibility of mesh data frame type with existing data subtypes 1672, 2235, 3467, 3601, 4468, 4893 Clarification of extended frame type vs. mesh management frame type vs. using existing frame types 42, 1234, 1582, 2011, 2012, 2013, 2024, 2031, 2055, 2278, 3674, 3675, 3676, 3722, 3723, 3724, 3760, 3761, 3764, 3765, 4470, 4471, 4770 Mesh Management Frame and Mesh Action Data Unit needs clarification 6, 312, 313, 316, 317, 318, 319, 324, 1937, 1939, 2057, 2619, 2900, 3535, 3747, 4018, 4081, 4197, 4894, 4939, 5197 Incomplete frame descriptions 1805, 1936, 3605, 3666 Action encapsulation frame needs clarification 3547 Guenael Strutt, Motorola et al. Guenael Strutt, Motorola et al.

Proposed Management Frames for Mesh March 2007 doc.: IEEE 802.11-07/0550r3 June 2007 Proposed Management Frames for Mesh Action frame SUBTYPE MAC HEADER PAYLOAD MGMT 00 ACTION 1101 ADDR1 RA=DA ADDR2 TA=SA BSSID 00 CATEGORY X ACTION Y Fields/IEs related to this Category/Action TYPE ACTION FIELD Path Request Peer Link Open Mesh Channel Switch Link Metric Report Portal Announcement etc. FIXED LENGTH TYPE SUBTYPE MAC HEADER PAYLOAD MGMT 00 MH ACTION 1111 ADDR1 RA ADDR2 TA ADDR3 DA ADDR4 SA Mesh Header CATEGORY X ACTION Y Fields/IEs related to this Category/Action MULTIHOP INFO FIELD ACTION FIELD Multihop Action frame Mesh Key Holder Security Establishment PMK-MA Delivery Push etc. Guenael Strutt, Motorola et al. Guenael Strutt, Motorola et al.

Proposed Data Frames for Mesh March 2007 doc.: IEEE 802.11-07/0550r3 June 2007 Proposed Data Frames for Mesh Reuse existing data types/subtypes with ToDS/FromDS bits set to 1/1: Mesh data frames are only exchanged between peer MPs with an established mesh link Assures forward compatibility with data frame changes that other task groups might come with – e.g. TGn aggregation. Compatibility with legacy/non-standard implementations No incompatibilities with legacy BSS/IBSS STA or AP implementations since they use different values for ToDS/FromDS Some non-standard WDS implementations may automatically attempt to communicate with any nearby device discovered sending 4-address broadcast/multicast data frames (so-called “Lazy WDS” scheme) MPs ignore 4-address data frames transmitted by legacy/non-standard WDS devices, since they do not establish a mesh link Guenael Strutt, Motorola et al. Guenael Strutt, Motorola et al.

References doc.: IEEE 802.11-07-0023r35 (Issue Identifier G11) March 2007 doc.: IEEE 802.11-07/0550r3 June 2007 References doc.: IEEE 802.11-07-0023r35 (Issue Identifier G11) Guenael Strutt, Motorola et al. Guenael Strutt, Motorola et al.