ETSI EN 300 820-1 V1.2.1 (2000-11)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Telecommunications Management Network (TMN); Asynchronous Transfer Mode (ATM) management information model for X interface between Operation Systems (OSs) of a Virtual Path (VP)/Virtual Channel (VC) cross connected networks; Part 1: Configuration management33.040.35Telefonska omrežjaTelephone networksICS:Ta slovenski standard je istoveten z:EN 300 820-1 Version 1.2.1SIST EN 300 820-1 V1.2.1:2003en01-november-2003SIST EN 300 820-1 V1.2.1:2003SLOVENSKI
STANDARD
ETSIEN300820-1V1.2.1(2000-11)EuropeanStandard(Telecommunicationsseries)TelecommunicationsManagementNetwork(TMN);AsynchronousTransferMode(ATM)managementinformationmodelforXinterfacebetweenOperationSystems(OSs)ofaVirtualPath(VP)/VirtualChannel(VC)crossconnectednetworks;Part1:ConfigurationmanagementSIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)2ReferenceREN/TMN-GOM003-1KeywordsATM,B-ISDN,configuration,interface,management,switching,TMNETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)3ReferenceREN/TMN-GOM003-1KeywordsATM,B-ISDN,configuration,interface,management,switching,TMNETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)4ContentsIntellectualPropertyRights.8Foreword.81Scope.92References.93Definitionsandabbreviations.103.1Definitions.103.2Abbreviations.154Managementarchitecture.164.1X-interfaceattheServiceManagementlevel.164.2Consumer/Provider.174.3Organizationalmodel.184.4ResponsibilityofPNOsregardingaVPconnection.184.4.1BasicVPconnectionresponsibilityrules.184.4.2Examplesofapplicationoftheresponsibilityrules.195Void.206ConfigurationManagementandResilienceRequirements.206.1ATMVPresiliencerequirements.217Managementservices.227.1Managementservices.227.2ManagementServiceComponents(MSC).227.2.1EstablishMSC.227.2.2ReleaseMSC.247.2.3ModificationMSC.247.2.4ReconfigurationMSC.257.2.5ContinuityCheckMSC.257.2.6ResilienceMSC.277.3ManagementFunctions(MF).307.3.1ActivateBidirectionalContinuityMonitorSourceforContinuityCheck.307.3.2ActivateChange.317.3.3ActivateVCSubnetworkConnection.317.3.4ActivateVPLinkConnection.317.3.5ActivateVPSubnetworkConnection.317.3.6AllowF4flow.317.3.7AllowF5flow.327.3.8CancelChange.327.3.9CancelVCSubnetworkConnection.327.3.10CancelVPLinkConnection.327.3.11CancelVPSubnetworkConnection.337.3.12ChangeReservation.337.3.13CheckAvailableCellRate.337.3.14CreateBidirectionalContinuityMonitorforContinuityCheck.347.3.15DeactivateBidirectionalContinuityMonitorSourceforContinuityCheck.347.3.16DeactivateVCSubnetworkConnection.357.3.17DeactivateVPLinkConnection.357.3.18DeactivateVPSubnetworkConnection.357.3.19DeleteBidirectionalContinuityMonitor.367.3.20DestinationUserChecking.367.3.21NotificationofBidirectionalContinuityMonitorOperationalStateChange.377.3.22ReleaseVCSubnetworkConnection.377.3.23ReleaseVPLinkConnection.377.3.24ReleaseVPSubnetworkConnection.377.3.25ReportofContinuityCheck.38SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)57.3.26ReserveEnhancedVPSubnetworkConnection.387.3.27ReserveVCSubnetworkConnection.397.3.28ReserveVPLinkConnection.417.3.29ReserveVPSubnetworkConnection.427.3.30StopF4flow.427.3.31StopF5flow.437.3.32SwitchToSubnetworkConnection.437.3.33TopologyInfoChanges.438Managementinformationmodel.448.1Introduction.448.2Inheritancetree.458.3EntityRelationshipDiagram.468.4ES200653,ITU-TRecommendationsI.751andX.721ObjectClassesadaptedforXIF.478.4.1Connectivity.478.4.2LinkConnection.488.4.3SubnetworkConnection.488.4.4NetworkTP.498.4.5NetworkCTPSink.508.4.6NetworkCTPSource.508.4.7NetworkTTPsink.508.4.8NetworkTTPsource.518.4.9NetworkCTPBi-directional.518.4.10NetworkTTPbi-directional.518.4.11AdminDomain.518.4.12SubnetworkPair.528.4.13Sub-Network.528.4.14bidirectionalContinuityMonitor.538.4.15system.538.5ATMXVP/VCObjectClasses.548.5.1Introduction.548.5.2ConnectionFragment.578.5.3ConnectionTerminationPointFragment.608.5.4TopologyFragment.618.5.5ContinuityCheckFragment.648.6PackageDefinitions.648.6.1AttributeValueChangeNotification.648.6.2cancelVcNetworkConnectionNotification.648.6.3cancelVpLinkConnectionNotification.648.6.4cancelVpNetworkConnectionNotification.648.6.5CreateDeleteNotification.648.6.6flowDirection.648.6.7KindOfResilience.648.6.8relatedSnc.658.6.9StateChangeNotification.658.6.10switchToSnc.658.6.11TMNCommunicationAlarmInformation.658.6.12vcTestState.658.6.13vpPerformAndResilience.658.6.14vpTestState.668.7AttributeDefinitions.668.7.1AssociatedSubNetworkPairId.668.7.2BackwardQoSClass.668.7.3ChangeReservationInformation.668.7.4continuityMonitorId.668.7.5ForwardQoSClass.678.7.6InitiatingPnoSubnetworkId.678.7.7InitiatingVcConnectionId.678.7.8InitiatingVpConnectionId.678.7.9kindOfResilience.678.7.10ListofATMAccessPointPairResources.688.7.11MaxNumVCIBitsSupported.68SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)68.7.12MaxNumVPIBitsSupported.688.7.13OperationalState.688.7.14PNONWAccessPointId.688.7.15relatedSNC.688.7.16sinkCCMecanismActive.688.7.17sourceCCMechanismActive.688.7.18TrailTerminationPointId.688.7.19VCCTPId.688.7.20VCSchedulers.698.7.21vcTestState.698.7.22VPCTPId.698.7.23VPSchedulers.698.7.24vpTestState.698.8AttributeGroupDefinitions.698.9ParameterDefinitions.698.10NotificationDefinitions.708.10.1CancelVCNetworkConnectionNotification.708.10.2CancelVPLinkConnectionNotification.708.10.3CancelVPNetworkConnectionNotification.708.11ActionDefinitions.708.11.1ActivateChange.708.11.2CheckUser.708.11.3controlCC.718.11.4GiveAvailableLinks.718.11.5ReleasePNOVCSubnetworkConnection.718.11.6ReleasePNOVPLinkConnection.718.11.7ReleasePNOVPSubnetworkConnection.718.11.8ReservePNOEnhancedVpSubnetworkConnection.728.11.9ReservePnoVcSubnetworkConnection.728.11.10ReservePNOVPLinkConnection.748.11.11ReservePNOVPSubnetworkConnection.758.11.12switchToSnc.768.12NameBindingDefinitions.768.12.1interPnoTopologicalSubnetworkPair-pnoVcSubnetwork.768.12.2interPnoTopologicalSubnetworkPair-pnoVpSubnetwork.778.12.3interPnoTopologicalSubnetworkPair-pnoVpSubnetworkR2.778.12.4pnoBidirectionalContinuityMonitor-pnoVCCTP.778.12.5pnoBidirectionalContinuityMonitor-pnoVPCTP.778.12.6pnoNWAtmAccessPoint-pnoVpSubnetwork.778.12.7PnoNWAtmAccessPointR2-pnoVcSubnetwork.788.12.8pnoNWAtmAccessPointR2-pnoVpSubnetworkR2.788.12.9pnoVCCTP-pnoVPTTP.788.12.10pnoVcSubnetwork-system.798.12.11pnoVcSubnetworkConnection-pnoVcSubnetwork.798.12.12pnoVPCTP-pnoNWAtmAccessPoint.798.12.13pnoVPCTP-pnoNWAtmAccessPointR2.798.12.14PnoVpLinkConnection-interPnoTopologicalSubnetworkPair.798.12.15pnoVpSubnetworkConnection-pnoVpSubnetwork.808.12.16pnoVpSubnetworkConnectionR2-pnoVpSubnetworkR2.808.12.17pnoVpSubnetworkR2-system.808.12.18pnoVPTTP-pnoNWAtmAccessPointR2.808.12.19Subnetwork-system.808.13ASN.1Module.81SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)7AnnexA(informative):AbouttheinfluenceoftimersontheX-interfacecommunication.86AnnexB(informative):SecurityAspects.87AnnexC(informative):ATMVP/VCResilience.88AnnexD(informative):MappingbetweenManagementFunctions,CMISEServicesandObjectClasses.92AnnexE(informative):MappingparametersVpQosClassandVcQosClasstoATMQoS.94AnnexF(informative):FutureOrganizationalModels.95F.1ResponsibilityofPNOsregardingaVP/VCconnection.96F.1.1Examplesofapplicationoftheresponsibilityrules.96F.2Scenarios.98AnnexG(informative):TrafficDescriptorreferenceproblems.102Bibliography.104History.105SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)8IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeTelecommunicationsManagementNetwork(TMN).Thepresentdocumentispart1ofamulti-partdeliverablecoveringthemanagementinformationmodelfortheX-typeinterfacebetweenOperationsSystems(OSs)ofaVirtualPath(VP)/VirtualChannel(VC)crossconnectednetwork,asidentifiedbelow:Part1:"Configurationmanagement";Part2:"Alarmmanagement";Part3:"VPPerformancemanagement".(VCPerformanceManagementaspectsareforfurtherstudy).NationaltranspositiondatesDateofadoptionofthisEN:24November2000DateoflatestannouncementofthisEN(doa):28February2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31August2001DateofwithdrawalofanyconflictingNationalStandard(dow):31August2001SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)91ScopeThepresentdocumentaddressestherequirementsofnetworkandserviceprovidersofAsynchronousTransferMode(ATM)crossconnectednetworksforestablishing,maintainingandreleasingVirtualPath(VP)and/orVirtualChannel(VC)connections(generallydenotedas'VP/VCconnections'inthepresentdocument),whichspanseveraladministrativeATMdomains.Theserequirementsaresatisfiedbytheuseofastandardizedinterface(the"X-interface")betweenOperationSystemsbelongingtodifferentnetworkoperators.Readersofthepresentdocumentshouldbemadeawarethattheabbreviation'PNO'istakentomeanProvidingNetworkOperator.Inthepreviousversionofthepresentdocument(andrelateddocuments),PNOwasdefinedasPublicNetworkOperator.Thechangeindefinitionhasbeenprovidedtoreflectthechangeinmarketconditionsforprovisionofinterconnectedtelecommunicationsservices.However,itisconsiderednecessarytoretaintheabbreviation'PNO'becauseitisfoundinmanyofthemanagedobjectdefinitionsusedtospecifytheX-interface.Itwouldbedisadvantageoustointroducemajorchangesinthesemanagedobjectdefinitions,whichservepurelytechnicalpurposesformanagementofinterconnectionsonly.ThepresentdocumentcontainsageneraloverviewdescribingthedifferentmanagementareasthatwillbecoveredinthedifferentX-interfaceENs-configuration,alarmandperformance-aswellastherelationshipsbetweenthem.Thepresentdocumentdescribestheconfigurationmanagementareacoveringthefollowingaspects:-amanagementarchitecturethatshowshowtheX-interfaceistobeusedbetweenserviceornetworkproviders;-themanagementservicesandfunctionsneededtomanageATMconnections,whichspanseveraladministrativedomains.ThesemanagementservicesandfunctionscovertherequirementsfortheX-interface;-themanagementinformationcrossingtheX-interface.ThismanagementinformationspecificationusestheGuidelinesfortheDefinitionofManagedObjectsGDMOformalism,describedinITU-TRecommendationX.722[4].2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ITU-TRecommendationM.3100:"Genericnetworkinformationmodel".[2]ITU-TRecommendationM.1400:"Designationsforinternationalnetworks".[3]ITU-TRecommendationI.751(1996):"AsyncronousTransferModeManagementOfTheNetworkElementView".[4]ITU-TRecommendationX.722:"GuidelinesforthedefinitionofmanagedobjectsforITU-Tapplications".[5]ETSIEN300820-2:"TelecommunicationsManagementNetwork(TMN);AsynchronousTransferMode(ATM)managementinformationmodelfortheXinterfacebetweenOperationSystems(OSs)ofaVirtualPath(VP)/VirtualChannel(VC)crossconnectednetworks;Part2:Alarmmanagement".SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)10[6]ITU-TRecommendationI.630(1999):"IntegratedServicesDigitalNetwork,MaintenancePrinciples:ATMProtectionSwitching"(PrepublishedRecommendation).[7]ITU-TRecommendationM.3010(1996):"PrinciplesforaTelecommunicationsmanagementnetwork".[8]ETSIEN300820-3:"TelecommunicationsManagementNetwork(TMN);AsynchronousTransferMode(ATM)managementinformationmodelfortheXinterfacebetweenOperationSystems(OSs)ofaVirtualPath(VP)/VirtualChannel(VC)crossconnectednetworks;Part3:VPPerformancemanagement".[9]ETSIES200653(V1.2.1):"TelecommunicationsManagementNetwork(TMN);Networklevelgenericclasslibrary".[10]ITU-TRecommendationX.721:"Informationtechnology-OpenSystemsInterconnection-Structureofmanagementinformation:Definitionofmanagementinformation".[11]ISO/IEC10165-2:"Informationtechnology-OpenSystemsInterconnection-Structureofmanagementinformation:Definitionofmanagementinformation".[12]ETSIETS300469(1997):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);AsynchronousTransferMode(ATM);Managementofthenetworkelementview[ITU-TRecommendationI.751(1996)]".[13]ETSIEN300820-1(V1.1.1):"TelecommunicationsManagementNetwork(TMN);ManagementinformationmodelfortheX-typeinterfacebetweenOperationSystems(OSs)ofaVirtualPath(VP)/VirtualChannel(VC)crossconnectednetwork;Part1:Configurationmanagementaspects".[14]ITU-TRecommendationI.356:"B-ISDNATMLayerCellTransferPerformance".3Definitionsandabbreviations3.1Definitions(Somedefinitionsdependonthefutureacceptanceofthe"cascaded/mixedmode"asdescribedinannexD.Thisdependenceisalreadytakenintoaccountinthesedefinitions).Forthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:APNO:PNOwheretheInitiatorstartsreservingtheend-to-endVPorVCconnectionNOTE1:IftheterminationpointoftheconnectionisataUseraccesspoint,thisisconsideredtobetheAUserAccesspoint.TheAPNOcanbetheInitiatingPNO,butthisisnotalwaysthecase.ItistheConsumerofotherPNO'spartsoftheVP/VCconnection.ATMAccesspoint:meansbywhichasubnetworkoffersexternalinterfacestoothersubnetworksNOTE2:ItisassociatedwithanendpointofanIPPL.ATMInterconnectionGateway:ATMaccesspointinonesubnetwork,whichisassociatedwithanATMaccesspointinanothersubnetworkforthepurposeoftopologicalinterconnectionconnection:"transportentity"whichiscapableoftransferringinformationtransparentlybetween"connectionpoints(CP)"NOTE3:A"connection"definestheassociationbetweenthe"connectionpoints"andthe"connectionpoints"delimitthe"connection".SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)11consumerandproviderrolesofaPNO:withrespecttoaparticularEnd-to-endconnection,aConsumerPNOisaPNOthathasdelegatedthemanagementofasubnetworkconnectionplustheoutgoinglinkconnectiontoanotherPNO(beingaProviderPNO)NOTE4:If,infuture,the"cascaded/mixed"modeshouldbeaccepted(annexD)aPNOcanhavebothrolesatthesametime,ifitisprovidingpartoftheEnd-to-endconnection(beingaProvider),andatthesametimeasksanotherPNOtoprovideapartoftheEnd-to-endconnection(beingaConsumer).end:pointwhereaconnectionterminatesandwhichisassociatedwithanaddressNOTE5:TheaddressshouldbespecifiedinaccordancewithITU-TRecommendationM.1400[2].end-to-endConnection:overallConnectionwhichcanbeoneofthefollowingtypes:User-to-userVPC/VCC,Network-to-userVPC,User-to-networkVPCorNetwork-to-networkVPC)NOTE6:Thesetypesaredefinedintheremainderofthissubclause.NOTE7:Foragivenend-to-endconnection,anyPNOmayactinanyoftheI,A,TorZPNOrolesaccordingtotheinterconnectionrequirementstoprovidetheservice.EXAMPLE1:Figures2and3providesomeexamplesofend-to-endconnections.InterPNOPhysicalLink(IPPL):representsaphysicallinkthatoffersbidirectionaltransmissioncapabilitiesandconnectstwosubnetworks.EachInterPNOPhysicalLinkisterminatedbytwoATMAccessPointswhichareinchargeofemittingfailuresrelatedtothelinkortotheaccesspointitself.AnIPPLcanberealizedbyanytransmissioncapability(SDH,PDHetc.)IPNO:initiatingPNO.ItisthePNOrequestingforaparticularATMend-to-endconnection.ItstartsrequestinginthesubnetworkoftheAPNOandendsinthesubnetworkoftheZPNO.Itcontrolstheend-to-endconnectionlink:"topologicalcomponent"whichdescribesthefixedrelationshipbetweena"sub-network"andanother"sub-network"or"accessgroup".Itisdefinedbyanaccesspointononesub-network,whichisassociatedwithanaccesspointonanothersubnetworklinkconnection:linkconnectionissupportedbyatrailintheserverlayernetwork.ItiscapableoftransferringinformationtransparentlyacrossalinkbetweentwoconnectionpointsorbetweenaterminationconnectionpointandaconnectionpointinthecaseofalinkconnectionattheboundaryofalayernetworkNOTE8:Figures2and3showhowalinkconnectionisapartofanend-to-endconnection.network-to-networkVPC:VP"transportentity"formedbytheseriesof"connections"between"terminationCPs",startingatanATMInterconnectionGatewayandendingatanATMInterconnectionGateway.ThisinvolvestheATMresourcesofmorethanonePNO.TheNetwork-to-networkconnectionsthatarerelevanttotheXInterfaceareoftheVPtype(Figure2showshowaNetwork-to-networkconnectionisbuildupbyaseriesofotherconnections)network-to-userVPC:VP"transportentity"formedbytheseriesof"connections"between"terminationCPs",startingatanATMInterconnectionGatewayandendingattheZUserAccesspointinthenetworkoftheZPNO.ThisinvolvestheATMresourcesofmorethanonePNO.TheNetwork-to-userconnectionsthatarerelevanttotheXInterfaceareoftheVPtypePNO:providingNetworkOperator.AnoperatorabletoprovidenetworkresourcestocustomerspnoVcSubnetwork:topologicalcomponentusedtoeffectroutingandmanagementofATMcells.Itdescribesthepotentialforsettingup"ATM-VCconnections"acrossthesubnetwork.ThepnoVcSubnetworksaredelineatedbyATMAccessPointsandinterconnectedby"inter-PNOPhysicallinks"NOTE9:ApnoVcSubnetworkcanbepartitionedintointerconnected"sub-networks"and"links",butthispartitioningisnotshownoverXInterface.Inthecontextofthepresentdocument,onepnoVcSubnetworkrepresentsanATMnetworkbelongingtoonePNO.pnoVpSubnetwork:topologicalcomponentusedtoeffectroutingandmanagementofATMcells.Itdescribesthepotentialforsettingup"ATM-VPconnections"acrossthesubnetwork.ThepnoVpSubnetworksaredelineatedbyATMAccessPointsandinterconnectedby"inter-PNOPhysicallinks"SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)12NOTE10:ApnoVpSubnetworkcanbepartitionedintointerconnected"sub-networks"and"links",butthispartitioningisnotshownoverXinterface.Inthecontextofthepresentdocument,onepnoVpSubnetworkrepresentsanATMnetworkbelongingtoonePNO.sub-network:"topologicalcomponent"usedtoeffectroutingandmanagement.Itdescribesthepotentialfor"sub-networkconnections"acrossthe"sub-network".Itcanbepartitionedintointerconnected"sub-networks"and"links".Each"sub-network"inturncanbepartitionedintosmaller"sub-networks"and"links"andsoon.A"sub-network"maybecontainedwithinonephysicalnode.Inthepresentdocumentthispartitionisnotusedsub-networkconnection:subnetworkconnectioniscapableoftransferringinformationtransparentlyacrossasubnetwork.Itisdelimitedbyconnectionterminationpointsattheboundaryofthesubnetworkandrepresentstheassociationbetweentheseconnectionpoints.ItcanbeaVPoraVCconnectionsubnetworkview:subtreeoftheX-interfacetree.AsubnetworkviewbelongstoaparticularPNO:ThePNOattherootofthesubtree.TPNO:transitPNO.ThisisaPNOusingitsownsubnetworktoperformitsrequiredtransitpartofVPconnection.IthasaproviderroleandcorrespondstoaleafintheX-interfacetree,notbeingtheZside.Inthe"cascaded/mixedapproach"caseitcanbebothaProvider(whereitactsasaTransitoperator)andaConsumer(whereitvirtuallyactsasanInitiatingoperator)trail:definedinES200653[9]user:consumeroftheATMinterconnection,providedbytheend-to-endconnectionuser-to-networkVPC:"transportentity"formedbytheseriesof"connections"between"terminationCPs",startingattheAUserAccesspointinthenetworkoftheAPNOandendingatanATMInterconnectionGateway.ThisinvolvestheATMresourcesofmorethanonePNO.TheUser-to-networkconnectionsthatarerelevanttotheXInterfaceareoftheVPtypeNOTE11:Figure2showshowaUser-to-networkconnectionisbuildupbyaseriesofotherconnections.User-to-userVPC/VCC:"transportentity"formedbytheseriesof"connections"between"terminationCPs",startingattheAUserAccesspointinthenetworkoftheAPNOandendingattheZUserAccesspointinthenetworkoftheZPNO.ThisinvolvestheATMresourcesofmorethanonePNO.TheUser-to-userconnectionsthatarerelevanttotheXInterfacecanbeoftheVPtypeortheVCtypeEXAMPLE2:Figures2and3showexamplesofUser-to-userconnections.X-interfacetree:withrespecttoaparticularVPC,X-interfacerelationsexistbetweeneachProviderPNOandtheirConsumerPNO.BecauseeachProviderhasexactlyoneConsumer,theX-interfacerelationsbetweenallPNOsinvolvedinthemanagementofaparticularVPCformatree,theX-interfacerelationtreeNOTE12:Forthecascaded/mixedmodetherecanbeseveralpossibleX-interfacerelationtrees;theactualtreeisformedatVPCsetup.TherootofthetreeistheInitiatingPNO;ituses(viaX-interfacecontrols)thePNOs(oftenTransitPNOs),towhichitisconnectedinthetreeviaitsbranches.ThemostrightleafofthetreeistheZPNO.Figure2showsanexampleofanX-interfacetreeforthestarmodewiththeAPNObeingtheInitiator.TZTIFigure1:ExampleofaX-interfacetreewiththeInitiatingPNObeingtheAPNOZPNO:PNOwheretheInitiatorendsreservingtheend-to-endconnectionNOTE13:IftheterminationpointoftheconnectionisataUseraccesspoint,thisisconsideredtobetheZUserAccesspoint.Inthiscase,theIPNOviewstheZPNOasaPNOwhosesubnetisconnectedtotheZUser.SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)13(NotethatforUser-to-userConnectionstheVPLinkconnectionsthatarepartofitarenotvisibleacrosstheX-Interface.TheLinkConnectionsthatterminatethe"networkside"ofanend-to-endConnectionarevisibleovertheX-Interface)EXAMPLE3:Thefollowingfigures2and3showexamplesofpossibleend-to-endconnections.SIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)14Figure2:ExamplesofFunctionalarchitecturesofVPCsprovidedbythreePNOsVPSC:VPSubNetworkConnectionVPLC:VPLinkConnection:ConnectionpointsUD:UserDomain(notvisibleacrosstheX-Interface):NotvisibleacrosstheX-Interface:VisibleacrosstheX-InterfaceVPUUC(VPSC)(VPSC)(VPSC)PNO#1VPSCVPSCVPSCVPLCVPLCPNO#2PNO#3UDUDVPUUC:VPUsertouserConnectionVPUNC(VPSC)(VPSC)(VPLC)PNO#1VPSCVPSCVPLCVPLCPNO#2PNO#3UDVPUNC:VPUsertonetworkConnectionVPNNC(VPLC)(VPSC)(VPLC)PNO#1VPSCVPLCVPLCPNO#2PNO#3VPNNC:VPNetworktonetworkConnectionSIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)15Figure3:ExamplesofFunctionalarchitecturesofaVCCprovidedbythreePNOs3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ASN.1AbstractSyntaxNotationOneATMAsynchronousTransferModeATMCPATMConnectivityProviderBMBusinessManagementCMIPCommonManagementInformationProtocolCMISECommonManagementInformationServiceElementCPConnectionPointCTPConnectionTerminationPointEMElementManagementGCLGenericClassesLibraryGDMOGuidelinesfortheDefinitionofManagedObjectsIPPLInterPNOPhysicalLinkMFManagementFunctionMSManagementServiceMSCManagementServiceComponentNENetworkElementNEFNetworkElementFunctionNGCNetworkGenericClassLibraryNMNetworkManagementNMCNetworkManagementCentreNMSNetworkManagementSystemOSOperationsSystemOSFOperationsSystemFunctionOSSOperationsSupportSystemPNOProvidingNetworkOperatorQoSQualityofServiceSMServiceManagementTPNOTransitPNOTMNTelecommunicationsManagementNetworkVCUUC(VCSC)(VCSC)(VCSC)PNO#1VCSCVCSCVCSCVPLCVPLCPNO#2PNO#3UDUDVCUUC:VCUsertouserConnectionVCSC:VCSubNetworkConnectionVPLC:VPLinkConnection:ConnectionpointsUD:UserDomain(notvisibleacrosstheX-Interface):NotvisibleacrosstheX-Interface:VisibleacrosstheX-InterfaceSIST EN 300 820-1 V1.2.1:2003

ETSIETSIEN300820-1V1.2.1(2000-11)16TPTerminationPointVCVirtualChannelVCCVirtualChannelConnectionVCUUCVirtualChannelUser-to-userConnectionVPVirtualPathVPCVirtualPathConnectionVPLCVirtualPathLinkConnectionVPNCVirtualPathNetworkConnectionVPN
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