ITU J.163:2007
ITU J.163:2007 Dynamic Quality Of Service For The Provision Of Real-time Services Over Cable Television Networks Using Cable Modems Specifies requirements for a client device to obtain access to network resources.
Table of Contents
1Scope2References
2.1Normativereferences
2.2Informativereferences
3Termsanddefinitions
4Abbreviationsandconventions
4.1Abbreviations
4.2Conventions
5Technicaloverview
5.1IPCablecomQoSarchitecturerequirements
5.2IPQoSaccessnetworkelements
5.3IPCablecomdynamicQoSarchitecture
5.4QoSinterfaces
5.5FrameworkforIPCablecomQoS
5.6Requirementsofaccessnetworkresourcemanagement
5.7Theoryofoperation
6EmbeddedMTAtoCMQoSProtocol(pkt-q1)
6.1RSVPflowspecs
6.2DOCSISsupportforresourcereservation
6.3UseofDOCSISMACcontrolserviceinterface
7Authorizationinterfacedescription(pkt-q6)
7.1Gates:TheframeworkforQoScontrol
7.2COPSprofileforIPCablecom
7.3Gatecontrolprotocolmessageformats
7.4Gatecontrolprotocoloperation
7.5CMSuseofgateprotocol
7.6Gate-coordination
AnnexA-Timerdefinitionsandvalues
AppendixI-Theftofservicescenarios
I.1ScenarioNo.1:CustomersestablishinghighQoS
connectionsthemselves
I.2ScenarioNo.2:CustomersusingprovisionedQoS
fornon-voiceapplications
I.3ScenarioNo.3:MTAalteringthedestinationaddress
invoicepackets
I.4ScenarioNo.4:Useofhalf-connections
I.5ScenarioNo.6:Earlyterminationleavinga
half-connection
I.6ScenarioNo.6:Forgedgatecoordinationmessages
I.7ScenarioNo.7:Frauddirectedagainstunwantedcallers
AppendixII-COPS(commonopenpolicyservice)
II.1COPSproceduresandprinciples
II.2ComparisonofCOPSandLDAPforpolicy
AppendixIII-TCPconsiderations
III.1Requirements
III.2Recommendedchanges
III.3TCPconnectionestablishmentimpactingpost-dialdelay
III.4NeedforlowlatencyforpacketsbetweentheGCand
CMTS,evenunderloss
III.5Head-of-lineblocking
III.6TCPslowstart
III.7Delayingofpackets:Nagle'salgorithm
III.8Non-blockinginterface