ITU Y.2121:2008
ITU Y.2121:2008 Requirements For The Support Of Flow State Aware Transport Technology In An Ngn Describes the requirements for the support of the flow-state-aware (FSA) transfer capability in a next generation network (NGN).
Table of Contents
1Scope2References
3Definitions
4Abbreviationsandacronyms
5Overview
6Requirements
6.1DynamicprovisioningrequestsfromanFSAsignalling
edgefunction
6.2NetworkandFSAsignallingedgefunctionresponsesto
flow-state-awarerequests
6.3Signallingrequirements
6.4Admissiondecision
6.5Generalarchitecturalrequirementsonthemanagement
oftransportconnectionscarryingflow-state-aware
trafficandothertraffic
6.6Securityconsiderationsandrequirements
AnnexA-DynamicprovisioningrequestsfromanFSAsignalling
edgefunction
A.1Negotiationsforauser-end-systemwithoutsignalling
capability
A.2Authorization
A.3Servicecontext
AnnexB-Signallingrequirements
B.1SecondQoSstructureattached
B.2Authorizationinformationattached
B.3Flowaggregationrequest
B.4FSAnodeoperation
AppendixI-Supplementaryinformationoninformation
exchangesviarequestsfromanFSAsignalling
edgefunctionandassociatedresponses
I.1Flowidentifier
I.2In-bandsignallingnegotiations
I.3Preferenceindicatorrequest
I.4Authentication
I.5Priorityofpacketdiscard,includingservicecontext
useofpreferenceindicatorvalues
I.6Congestionnotification
AppendixII-Supplementaryinformationtosignalling
requirements
II.1RecognitionofQoSsignallingpackets
II.2FormofQoSinformation
II.3Performancerequirementsforrequestsandresponses
II.4Releaseofresourcesnolongerrequired
II.5QoSsignallingparameters
II.6Servicecontexts
II.7Preferenceindicator
II.8Delaypriority
II.9Bursttolerance
II.10Flowidentifierfields
AppendixIII-IllustrativeQoSsupportfordifferent
preferenceindicatorvalues
III.1Preferenceresolutionformaximumrate(MRS)flows
III.2Preferenceresolutionforavailablerate(ARS)flows
AppendixIV-Supplementaryinformationrelatingtorequirements
onthemanagementoftransportconnections
carryingflow-state-awaretrafficandothertraffic
IV.1Generalarchitecturalassumptions
IV.2Generalissuesonthemanagementofaccesslinksshared
byFSAandnon-FSAtraffic
IV.3Combinedflow-levelandaggregateflow-levelFSAcontrols
AppendixV-Exampleimplementationprinciplesassociatedwith
FSAnodes
AppendixVI-Out-of-bandsignallingwithacentraladmission
entity
Bibliography