Institut für Telematik

Inter-Domain Reservation Aggregation for QoS NSLP

Roland Blessdraft-bless-nsis-resv-aggr-01

Roland Bless Institut für TelematikUniversität Karlsruhe (TH)

www.tm.uka.de

2

IETF-69 / draft-bless-nsis-resv-aggr-01

Motivation

End-to-end QoS requires usually inter-domain signalingScalability considerations

scalability in control plane (signaling) requiredso far only within a domain, RSVP-like aggregation using RAO codepoints (space too small)will not scale in the general inter-domain, because micro-flows visible again at domain egressneed inter-domain aggregation concept

Goalprovide mechanisms to allow for dynamic creation of inter-domain reservation aggregates

Roland Bless Institut für TelematikUniversität Karlsruhe (TH)

www.tm.uka.de

3

IETF-69 / draft-bless-nsis-resv-aggr-01

Problems

Determination of Aggregator and Deaggregatorfinding a deaggregator in other domains

Signaling between Aggregator and Deaggregator

direct signaling message association between Aggregator and Deaggregator

A Priori Determination of a Flow‘s Pathto allow for efficient integration of new flows into an existing aggregateavoid querying a path first

Route Change Detection for aggregated flows in an aggregate

Roland Bless Institut für TelematikUniversität Karlsruhe (TH)

www.tm.uka.de

4

IETF-69 / draft-bless-nsis-resv-aggr-01

Route Change Detection

Micro-Flows may leave the aggregate by re-routing eventsShould be detected: signalingshould followdata path

Roland Bless Institut für TelematikUniversität Karlsruhe (TH)

www.tm.uka.de

5

IETF-69 / draft-bless-nsis-resv-aggr-01

Proposed Changes

QoS NSLPNew Route-Record object to find deaggregatorsSpecial A-RESERVE using SESSION_ID_LISTNull QUERY

GISTNew AF-MRM

Type, Session-ID, PC-MRICan be used for route check, setup of direct signaling associations and path predictionChecking for Session-ID of aggregate allows bypassing at GIST level