1 / 9

QoS-NSLP QSpec Template

QoS-NSLP QSpec Template. draft-ash-nsis-nslp-qspec-01. Jerry Ash, Attila Bader, Chuck Dvorak, Yacine El Mghazli, Cornelia Kappler, Georgios Karagiannis, Andrew McDonald, Al Morton, Percy Tarapore, Lars Westberg. Motivated by IDs on QSMs draft-ash-nsis-nslp-qos-sig-proof-of-concept-01

brody
Télécharger la présentation

QoS-NSLP QSpec Template

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. QoS-NSLP QSpec Template draft-ash-nsis-nslp-qspec-01 Jerry Ash, Attila Bader, Chuck Dvorak, Yacine El Mghazli, Cornelia Kappler, Georgios Karagiannis, Andrew McDonald, Al Morton, Percy Tarapore, Lars Westberg Motivated by IDs on QSMs • draft-ash-nsis-nslp-qos-sig-proof-of-concept-01 • draft-bader-rmd-qos-model-01 • draft-kappler-nsis-qosmodel-controlledload-00

  2. Outline • Updates to draft • QSpec Template • Example QSpecs • IntServ Controlled Load Service • IntServ Guaranteed Service • Open Issues • Recommendation: propose document as NSIS WG draft

  3. Updates to the Draft • Focus on generic parameters • Based on DiffServ & IntServ QoS signaling models (QSMs) • Optional parameters supporting other QSMs to be provided later • Simplified overall structure • Clearer definition of sub-objects • Examples given of IntServ guaranteed service & controlled load service

  4. QSpec Template • QSpec Template defines generic parameters & optional parameters • Generic Parameters • MUST be understood by any QNE • SHOULD be used for QSpecs if applicable • Based on DiffServ & IntServ QSMs • Optional Parameters • SHOULD be used for QSpecs if applicable • To be provided later as required by other QSMs • Parameters can be mutable or immutable

  5. QSpec Template • QSpec = <QSM Specific Control Info> <QoS Description> • <QSM Specific Control Info> = <Hop Count> <Service Schedule> • <QoS Description> = <QoS desired > <QoS Available> <QoS Reserved> <Minimum QoS> • QoS Description sub-objects were proposed to satisfy sender and receiver initiated signaling

  6. Example QSpecs • QSpec for IntServ Controlled Load Service • <QoS Desired> = <token bucket> • <QoS Available> = <non IS hop> <IS hops> <Available BW> <Min latency> <M> • <QoS Reserved> = <token bucket> • QSpec for IntServ Guaranteed Service • <QoS Desired> = <token bucket> • <QoS Available> = <non IS hop> <IS hops> <Available BW> <Min latency> <M> <Ctot> <Dtot> <Csum> <Dsum> • <QoS Reserved> = <token bucket> <R> <S>

  7. Open Issues • QSM guideline is needed in addition to QSpec template • Specify ‘generic’ message processing rules • Extend those already present in QoS-NSLP (e.g. RESERVE-RESPONSE, QUERY-RESERVE-RESPONSE) • Clarify relationship of Common NSLP Processing, QSM-specific NSLP Processing and Resource Mgmt. Fct. • May a node compose a QSpec containing more parameters than defined in the QSM it is signaling for later use by other nodes?

  8. Open Issues • Optional parameters proposed to support other QSMs, need to discuss for inclusion in QSpec template • <Transfer Delay>, <Delay Variation>, <Packet Loss Ratio>, & <Packet Error Ratio> • Generalize priority parameter: <Priority> = <Reservation Priority> <Setup Priority> <Holding Priority> • <Priority> is part of <QoS Desired>, <QoS Reserved> or <Minimum QoS > • <Setup Priority> & <Holding Priority> specified in RFC 3209 • Do we need an explicit Traffic Specification, or is <QoS Desired>, which may not exactly describe the issued traffic, acceptable? • Should <Service Schedule> be optional?

  9. Recommendation • Propose draft as NSIS working group draft

More Related