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 qos ieee 802 1 avb wg jul 2011

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 parametrized qos 1

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 parametrized qos 2

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

“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…


Quality of service avb support for pri qos ieee 802 1 avb wg jul 2011

Thank you

IEEE 802.1 AVB WG - July 2011


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