rfc5951.Network Management Requirements for MPLS-b

InternetEngineeringTaskForce(IETF)K.LamRequestforComments:5951Alcatel-LucentCategory:StandardsTrackS.MansfieldISSN:2070-1721E.GrayEricssonSeptember2010NetworkManagementRequirementsforMPLS-basedTransportNetworksAbstractThisdocumentspecifiestherequirementsforthemanagementofequipmentusedinnetworkssupportinganMPLSTransportProfile(MPLS-TP).TherequirementsaredefinedforspecificationofnetworkmanagementaspectsofprotocolmechanismsandproceduresthatconstitutethebuildingblocksoutofwhichtheMPLSTransportProfileisconstructed.Thatis,theserequirementsindicatewhatmanagementcapabilitiesneedtobeavailableinMPLSforuseinmanagingtheMPLS-TP.Thisdocumentisintendedtoidentifyessentialnetworkmanagementcapabilities,nottospecifywhatfunctionsanyparticularMPLSimplementationsupports.StatusofThisMemoThisisanInternetStandardsTrackdocument.ThisdocumentisaproductoftheInternetEngineeringTaskForce(IETF).ItrepresentstheconsensusoftheIETFcommunity.IthasreceivedpublicreviewandhasbeenapprovedforpublicationbytheInternetEngineeringSteeringGroup(IESG).FurtherinformationonInternetStandardsisavailableinSection2ofRFC5741.Informationaboutthecurrentstatusofthisdocument,anyerrata,andhowtoprovidefeedbackonitmaybeobtainedat[Page1]RFC5951NMRequirementsforMPLS-basedTransportSeptember2010CopyrightNoticeCopyright(c)2010IETFTrustandthepersonsidentifiedasthedocumentauthors.Allrightsreserved.ThisdocumentissubjecttoBCP78andtheIETFTrust’sLegalProvisionsRelatingtoIETFDocuments()ineffectonthedateofpublicationofthisdocument.Pleasereviewthesedocumentscarefully,astheydescribeyourrightsandrestrictionswithrespecttothisdocument.CodeComponentsextractedfromthisdocumentmustincludeSimplifiedBSDLicensetextasdescribedinSection4.eoftheTrustLegalProvisionsandareprovidedwithoutwarrantyasdescribedintheSimplifiedBSDLicense.Lam,etal.StandardsTrack[Page2]RFC5951NMRequirementsforMPLS-basedTransportSeptember2010TableofContents1.Introduction....................................................41.1.Terminology................................................52.ManagementInterfaceRequirements...............................73.ManagementCommunicationChannel(MCC)Requirements.............74.ManagementCommunicationNetwork(MCN)Requirements.............75.FaultManagementRequirements...................................95.1.SupervisionFunction.......................................95.2.ValidationFunction.......................................105.3.AlarmHandlingFunction...................................115.3.1.AlarmSeverityAssignment..........................115.3.2.AlarmSuppression..................................115.3.3.AlarmReporting....................................115.3.4.AlarmReportingControl............................126.ConfigurationManagementRequirements..........................126.1.SystemConfiguration......................................126.2.ControlPlaneConfiguration...............................136.3.PathConfiguration........................................136.4.ProtectionConfiguration..................................146.5.OAMConfiguration.........................................147.PerformanceManagementRequirements............................157.1.PathCharacterizationPerformanceMetrics.................157.2.PerformanceMeasurementInstrumentation...................167.2.1.MeasurementFrequency..............................167.2.2.MeasurementScope..................................178.SecurityManagementRequirements...............................178.1.ManagementCommunicationChannelSecurity.................178.2.SignalingCommunicationChannelSecurity..................188.3.DistributedDenialofService.............................189.SecurityConsiderations........................................1910.Acknowledgments...............................................1911.References....................................................1911.1.NormativeReferences.....................................1912.2.InformativeReferences...................................20AppendixA.CommunicationChannel(CCh)Examples..................22Contributor’sAddress.............................................24Lam,etal.StandardsTrack[Page3]RFC5951NMRequirementsforMPLS-basedTransportSeptember20101.IntroductionThisdocumentspecifiestherequirementsforthemanagementofequipmentusedinnetworkssupportinganMPLSTransportProfile(MPLS-TP).TherequirementsaredefinedforspecificationofnetworkmanagementaspectsofprotocolmechanismsandproceduresthatconstitutethebuildingblocksoutofwhichtheMPLSTransportProfileisconstructed.Thatis,theserequirementsindicatewhatmanagementcapabilitiesneedtobeavailableinMPLSforuseinmanagingtheMPLS-TP.Thisdocumentisintendedtoidentifyessentialnetworkmanagementcapabilities,nottospecifywhatfunctionsanyparticularMPLSimplementationsupports.ThisdocumentalsoleveragesmanagementrequirementsspecifiedinITU-TG.7710/Y.1701[1]andRFC4377[2],andattemptstocomplywiththeguidelinesdefinedinRFC5706[15].ITU-TG.7710/Y.1701definesgenericmanagementrequi