Controlled Load Service QoS Model Cornelia Kappler Xiaoming Fu Bernd Schloer

2 69th IETF - Chicago, IL, USA Overview Quick review Controlled Load Service QoSM Draft Update 04 -> 05 Interoperation with RSVP/IntServ

3 69th IETF - Chicago, IL, USA Review Controlled-load service: a light-weight per-flow reservation service (compared with guaranteed service) in the IntServ model A useful use example for per-flow NSIS QoS signaling especially in access networks CLS QoSM: Bandwidth is signaled in form of a parameter provides approx. end-to-end service of an unloaded best-effort network Reserving resources per-flow

4 69th IETF - Chicago, IL, USA Draft Update 04 -> 05 Updated section about interoperation with RSVP-CLS Included additional bit-level examples, e.g. Resource QUERY Adapted terminology and content to latest version of QSPEC (v17), e.g. removed QOSM ID, removed MTU,..

5 69th IETF - Chicago, IL, USA Interoperation with RSVP/IntServ RSVP: The sender populates a Path message including Sender Tspec (Token Bucket) and an ADSpec (Bandwidth and MTU). The Receiver sends a Resv with a FlowSpec (Token Bucket). Sender confirms the reservation with a ResvConfirm.

6 69th IETF - Chicago, IL, USA Interoperation with RSVP/IntServ QoS NSLP: The sender populates a QUERY message including and The Receiver sends a RESERVE with and Sender confirms the reservation with a RESPONSE including (all QSPEC objects carry the parameter)‏

Current Status and Next Steps This doc is fairly stable  Reviewed by a number of WG members  Addressed several IETF meeting comments  Also revised based on implementation experiences Implementation: finished and working (will be included in next NSIS release)‏ As a WG item? 7 69th IETF - Chicago, IL, USA