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Doc.: IEEE 802.11-10/0219r0 Submission 802.11 -- Interworking with 802.1Qat Stream Reservation Protocol Date: 2010-02-14 Authors: Mar 2010 Ganesh Venkatesan,

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Presentation on theme: "Doc.: IEEE 802.11-10/0219r0 Submission 802.11 -- Interworking with 802.1Qat Stream Reservation Protocol Date: 2010-02-14 Authors: Mar 2010 Ganesh Venkatesan,"— Presentation transcript:

1 doc.: IEEE 802.11-10/0219r0 Submission 802.11 -- Interworking with 802.1Qat Stream Reservation Protocol Date: 2010-02-14 Authors: Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 1

2 doc.: IEEE 802.11-10/0219r0 SubmissionSlide 2 Abstract This submission is an overview of proposed input from 802.11 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

3 doc.: IEEE 802.11-10/0219r0 Submission Handling SRP Reservation Requests Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 3

4 doc.: IEEE 802.11-10/0219r0 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

5 doc.: IEEE 802.11-10/0219r0 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 http://www.ieee802.org/1/files/public/docs2008/avb-nfinn-802-11-bridging-0308-v3.pdf

6 doc.: IEEE 802.11-10/0219r0 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

7 doc.: IEEE 802.11-10/0219r0 Submission MSRP Handling at Q-AP/DMN (to Talker/Listener) Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 7

8 doc.: IEEE 802.11-10/0219r0 Submission Table Q.3 SRP to 802.11 SME QoS Services Mapping Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 8 MSRP AttributeMAD Primitive802.11 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

9 doc.: IEEE 802.11-10/0219r0 Submission Mar 2010 Ganesh Venkatesan, Intel CorporationSlide 9 Changes to 802.11 – Summary 1.Ability for QAPs to send Autonomous ADDTS Response 2.Add ADDTS Response.indication to the STA MLME interface 3.To the DMN 802.11 interface (out of scope for 802.11) Add SME-QUERY.{request|confirm} Add SME-ADDTS.{request|confirm} 802.1Qat 1.Mandate that 802.11 STAs and APs supporting SRP shall also support EDCA Admission Control 2.The 802.11 AP and SRP DMN shall co-exist in the same device 3.The SRP DMN shall generate 802.11 TSPECs as described in document 09/926r7 4.Mandate that 802.11STAs and APs supporting SRP shall encapsulate and de-encapsulate the 802.1q Tag

10 doc.: IEEE 802.11-10/0219r0 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 802.11? Should the solution be the same irrespective of if the 802.11 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

11 doc.: IEEE 802.11-10/0219r0 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 802.11 mechanisms Synchronization issues need to be addressed

12 doc.: IEEE 802.11-10/0219r0 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

13 doc.: IEEE 802.11-10/0219r0 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?

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