Standardizing for QoS (QoS Questions)

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Presentation transcript:

Standardizing for QoS (QoS Questions) May 2000 Standardizing for QoS (QoS Questions) Bob O’Hara Albert Young Dan Nessett Bruce Kendall Bofu Chen Bob O’Hara, et al.

May 2000 How Do We Proceed? Ensure there is a common understanding of just what “QoS” means Identify requirements against which alternatives may be judged Bob O’Hara, et al.

Some Questions What is QoS? How is QoS measured? May 2000 Some Questions What is QoS? Is it an action, behavior, or something else? How is QoS measured? Can it be measured? What SAP primitives are used to request/control QoS? What protocols are on the other side of this SAP? What are the parameters that cross this SAP? How would current IETF developments work with this SAP? Integrated Services? Differentiated Services? Bob O’Hara, et al.

May 2000 Some Questions What upper layer protocols support/require QoS from the Data Link/MAC layer? What about 802.1p? How is QoS supported by existing OS APIs? What OS APIs are proposed to be added to support QoS at the MAC layer? Who are we expecting to add these APIs? OS vendors? 802.11 developers? Bob O’Hara, et al.

Some Requirements How can alternative proposals be evaluated? May 2000 Some Requirements How can alternative proposals be evaluated? No simulation data No definitive impact statement on existing equipment No apparent demand for QoS in LAN space, let alone WLAN No defined interfaces What RFCs require/support the proposed services? What is the mapping to upper layer protocols? What are the concrete benefits provided by the proposed services? Bob O’Hara, et al.