Quality of Service AVB support for PRI QoS IEEE 8021 AVB WG Jul 2011 phklsrpqos0711v01 Priority QoS vs Parametrized QoS 1 The issues Not every network physical medium is really ID: 655982
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Slide1
Presented by: Philippe Klein, Broadcom
Quality of Service:AVB “support” for PRI QoS IEEE 802.1 AVB WG Jul 2011
phkl-srp-qos-0711-v01Slide2
Priority QoS
vs. Parametrized QoS (1)The issues:Not every network physical medium is really Paramterized QoS
(
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…
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IEEE 802.1 AVB WG - July 2011Slide3
Priority QoS
vs. Parametrized QoS (2)The proposal:Same SRP protocol for both Prioritized and Parameterized QoSAdd a new Prioritized/ Parameterized
QoS
attribute of
toTalker Advertise to characterize the streamThe same LR MAD_Join.request primitive is handled differently in fct of the Stream’s Prioritized/ Parameterized QoS attribute: For Pri QoS: LR MAD_Join.request
is translated to a network specific BW ADMISSION (based on PRI stream traffic statistics)
For
Param
QoS LR MAD_Join.request is translated to a network specific BW RESERVATIONBoth PRI and Param QOS Streams could be managed on the same path relative to the configured BW ratio between PRI and Parametrized QoS
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IEEE 802.1 AVB WG - July 2011Slide4
“AVB Ready” Bridges
“AVB Ready” bridges could be bridges supporting SRP for Prioritized QoS in the first stage until PQoS Stream management is added at a later stageQuestion: What is the best way to promote “AVB Ready” ?
An informative new profile in BA ?
Or…
4IEEE 802.1 AVB WG - July 2011Slide5
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IEEE 802.1 AVB WG - July 2011Thank you