1. 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.

2. 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.

3. 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.

4. 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?
developers?
Bob O’Hara, et al.

5. 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.