doc.: IEEE /0219r0 Submission Interworking with 802.1Qat Stream Reservation Protocol Date: Authors: Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 1

doc.: IEEE /0219r0 SubmissionSlide 2 Abstract This submission is an overview of proposed input from to 802.1Qat Annex-Q Clause Q.2 -- Discussions on the normative text (10/137r0) corresponding to 09/926r7 spawned interest in revisiting the solution proposed and seek a ‘future proof’ alternative, if possible. Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 2

doc.: IEEE /0219r0 Submission Handling SRP Reservation Requests Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 3

doc.: IEEE /0219r0 Submission Common Scenarios Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 4 Talker Q-AP DMN Listener(s) Q-AP DMN Talker Listener(s)Talker Q-AP Listener(s) Q-STA Alternate Data Path

doc.: IEEE /0219r0 Submission Advanced Scenario: STA is an Intermediate node or a Talker/Listener Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 5 Q-AP DMN Listener(s) Q-STA Talker/Listener(s) Talker Listener(s) Q-STA are intermediate nodes, Talker or Listener Note: This scenario is included for completeness. Support for this requires resolution of the “Station Bridge issue*”. * See

doc.: IEEE /0219r0 Submission A Q-STA can either be Talker/Listener or an intermediate node in the path from the Talker to the Listener. An intermediate node Q-STA or a Q-STA that is also the Talker/Listener just pass the MSRPDU to the Q-AP Q-AP forwards the MSRPDU to the Q-AP’s DMN Q-AP’s DMN invokes MLME-Reserve.request or MLME- Query.request with parameters corresponding to the received SRP Reservation/Query request If the MSRPDU is a Reservation Request and the Q-AP has sufficient resources: Q-AP’s SME issues a MLME.ADDTS.response to the talker Q-AP’s SME issues a MLME.ADDTS.response to the listener Q-AP responds to the DMN with a MLME-Reserve.confirm or MLME-Query.confirm MSPRDU Processing at the Q-AP/DMN (adopted proposal) Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 6

doc.: IEEE /0219r0 Submission MSRP Handling at Q-AP/DMN (to Talker/Listener) Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 7

doc.: IEEE /0219r0 Submission Table Q.3 SRP to SME QoS Services Mapping Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 8 MSRP AttributeMAD Primitive SME QoS Service Description Talker AdvertiseMAD_Join_Request (new) SME.QUERYQuery bandwidth availability without reservation Listener Ready or Listener Ready Failed MAD_Join_Request (new) SME.ADDTSReserve bandwidth for a stream Listener Ready or Listener Ready Failed MAD_Join_Request ()SME.ADDTSModify bandwidth reserved for a stream – no renewal needed, if requirements have not changed. Listener Request Removed MAD_Leave_Request ()SME.DELTSFree bandwidth associated with a stream MAD – MRP (Multiple Registration Protocol) Attribute Declaration

doc.: IEEE /0219r0 Submission Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 9 Changes to – Summary 1.Ability for QAPs to send Autonomous ADDTS Response 2.Add ADDTS Response.indication to the STA MLME interface 3.To the DMN interface (out of scope for ) Add SME-QUERY.{request|confirm} Add SME-ADDTS.{request|confirm} 802.1Qat 1.Mandate that STAs and APs supporting SRP shall also support EDCA Admission Control 2.The AP and SRP DMN shall co-exist in the same device 3.The SRP DMN shall generate TSPECs as described in document 09/926r7 4.Mandate that STAs and APs supporting SRP shall encapsulate and de-encapsulate the 802.1q Tag

doc.: IEEE /0219r0 SubmissionSlide 10 Summary of discussions in LA Need a discussion on the internals of 802.1Qat as far as SRP goes –Scheduled for the joint meeting with 802.1AVB in March, 2010 How does the current proposal (10/137r0) deal with Power Save? How does the current proposal deal with TSPEC, TCLAS and TCLAS processing negotiation? Would the current proposal be able to take advantage of enhancements in ? Should the solution be the same irrespective of if the STA is a Talker/Listener or is just a node in the path from the Talker to the Listener? Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 10

doc.: IEEE /0219r0 Submission Alternate Proposal-A -- MSRP Handling at Q-AP/DMN (to Talker/Listener) Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 11 Q-STA at the Talker end parses SRP and invokes corresponding mechanisms Synchronization issues need to be addressed

doc.: IEEE /0219r0 Submission Alternate Proposal-B -- MSRP Handling at Q-AP/DMN (to Talker/Listener) Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 12 Need a new “Reserve” management frame from AP to STA STA at Talker end does not have to parse SRP messages

doc.: IEEE /0219r0 Submission Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 13 Straw Polls 1.Should we retain current solution? 2.Is Alternate Proposal-B sufficient to address all concerns raised in LA? 3.Should we allow both options – current solution + Alternate Proposal-B or just Alternate Proposal-B?