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Controlled Load Service QoS Model <draft-kappler-nsis-controlledload-qosm-05.txt>

Controlled Load Service QoS Model <draft-kappler-nsis-controlledload-qosm-05.txt>. Cornelia Kappler Xiaoming Fu Bernd Schloer. Overview. Quick review Controlled Load Service QoSM Draft Update 04 -> 05 Interoperation with RSVP/IntServ. 2 69th IETF - Chicago, IL, USA. Review.

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Controlled Load Service QoS Model <draft-kappler-nsis-controlledload-qosm-05.txt>

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  1. Controlled Load Service QoS Model<draft-kappler-nsis-controlledload-qosm-05.txt> Cornelia Kappler Xiaoming Fu Bernd Schloer

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

  3. 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 <TMOD> parameter • provides approx. end-to-end service of an unloaded best-effort network • Reserving resources per-flow 3 69th IETF - Chicago, IL, USA

  4. 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,.. 4 69th IETF - Chicago, IL, USA

  5. 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. 5 69th IETF - Chicago, IL, USA

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

  7. 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

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