Quality of service avb support for pri qos ieee 802 1 avb wg jul 2011
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Quality of Service: AVB “support” for PRI QoS IEEE 802.1 AVB WG Jul 2011 PowerPoint PPT Presentation


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Quality of Service: AVB “support” for PRI QoS IEEE 802.1 AVB WG Jul 2011. Presented by: Philippe Klein, Broadcom. phkl-srp-qos-0711-v01. Priority QoS vs. Parametrized QoS (1). The issues: Not every network physical medium is really Paramterized QoS ( PQoS ) able.

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Quality of Service: AVB “support” for PRI QoS IEEE 802.1 AVB WG Jul 2011

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Quality of Service:AVB “support” for PRI QoSIEEE 802.1 AVB WG Jul 2011

Presented by: Philippe Klein, Broadcom

phkl-srp-qos-0711-v01


Priority QoS vs. ParametrizedQoS (1)

IEEE 802.1 AVB WG - July 2011

  • The issues:

    • Not every network physical medium is really ParamterizedQoS (PQoS) able.

    • Prioritized QoS is the most common QoS today. PQoS is gaining acceptance on PQoS-able medium but the acceptance will be very gradual over Priority QoS.

    • Using different Stream management Protocol for QoS and PQoS will affect the acceptance and deployment of AVB…


Priority QoS vs. ParametrizedQoS (2)

IEEE 802.1 AVB WG - July 2011

  • The proposal:

    • Same SRP protocol for both Prioritized and Parameterized QoS

    • Add a new Prioritized/ Parameterized QoS attribute of toTalkerAdvertise to characterize the stream

    • The same LR MAD_Join.request primitive is handled differently in fct of the Stream’s Prioritized/ Parameterized QoS attribute:

      • For PriQoS: LR MAD_Join.request is translated to a network specific BW ADMISSION (based on PRI stream traffic statistics)

      • For ParamQoS LR MAD_Join.request is translated to a network specific BW RESERVATION

    • Both PRI and Param QOS Streams could be managed on the same path relative to the configured BW ratio between PRI and ParametrizedQoS


“AVB Ready” Bridges

IEEE 802.1 AVB WG - July 2011

  • “AVB Ready” bridges could be bridges supporting SRP for Prioritized QoS in the first stage until PQoSStream management is added at a later stage

  • Question: What is the best way to promote “AVB Ready” ?

    • An informative new profile in BA ?

    • Or…


Thank you

IEEE 802.1 AVB WG - July 2011


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