CITR TECHNICAL JOURNAL VOLUME 1 65 AN OPENVIEW BAS

CITRTECHNICALJOURNALVOLUME165ANOPENVIEWBASEDATMNETWORKMANAGEMENTSYSTEMNIGELCOOK,ROBERTCOOTE,DAVIDHORTON,GEOFFTHOMPSON,ANDHIROSHISUZUKI1Abstract—AsynchronousTransferMode(ATM)networksareemergingasamajorbroadbandnetworkingtechnology.ThemanagementofthesenetworkscreatesnewchallengesforbothprivatenetworkoperatorsandpublictelecommunicationsserviceprovidercommunitiesduetotheheterogeneousmixofATMSwitchequipment,andtheneedtoestablish,controlandmonitorend-to-endconnections(virtualcircuits)throughanetwork.Considerableeffortisbeingappliedtotheformulationofstandardsinthisarea,inparticularbytheATMForumorganisation.CiTRhasbeenworkinginassociationwithNEConimplementingaprototypeATMNetworkManagementSystem(NMS)usingOpenViewandSNMPv1tocontrolandmonitorATMNetworksviatheIETFAToMMIB.ThisinternationalcollaborationbetweenteamsbasedinAustraliaandJapanhasdevelopedsuccessivephasedreleasesofNMSsoftware.TheinitialdevelopmentfocusedonconnectionorientedOpenViewmapnavigationandagraphicallydrivenconnectionestablishmentinterface.ThelatestreleaseincludesATMautodiscovery,automaticoptimalrouteselectionwhenestablishingPermanentVirtualCircuits(PVCs),andthesubsequentmonitoringandunattendedrestorationofthePVCs.ThepapersummarisesaspectsofthedevelopmentofATMNetworkmanagementsoftwareusingtheOpenViewplatform,andincludesadescriptionofthephaseddevelopmentstrategyaswellasthefeaturesandpitfallsofusingOpenViewinthisapplication.SourceofPublication—OpenViewForum,Seattle,USA,June1995.1PERSPECTIVES1.1INTRODUCTIONAsynchronousTransferMode(ATM)isahigh-speednetworkingtechnology.ATM’sspeed,lowlatencyandabilitytohandlealltypesoftrafficoverasinglenetworkmakeitidealforarangeofbandwidth-intensiveapplications,includingmultimedia,medicalimaging,bank-checkimaging,seismologystudies,supercomputerapplications,CAD/CAM,andmore.OnefactorinfluencingthepaceofATMadoptionisstandards,manyofwhicharebeingformulatedbytheATMForum.OnedifferencebetweenATMandothernetworkingtechnologiesistheconceptof“virtualcircuits”.NegotiatingavirtualcircuitwithnominatedbandwidthandqualityofserviceparametersisafeatureofATMcircuitprovisioning.StandardsdefinedbytheATMForumandIETFallowuserstochangenetworkdesignandre-routetrafficbymanipulatingvirtualcircuits.However,inmanyimplementationstodatethishasbeenamanualprocess.1.2ATMFORUMATMForumwasfoundedin1991asanassociationofover700memberstopromoteATMstandards,andtohelpbringATMtothemarketquickly.1.Dr.HiroshiSuzuki,NECNetworkResearchLaboratories,C&CResearchLaboratories,1-1,Miyazaki4-Chome,Miyamae-Ku,Kawasaki,Kanagawa216,Japan,e-mail:[e-mail],phone:[phone],fax:[phone]NIGELCOOK,ROBERTCOOTE,DAVIDHORTON,GEOFFTHOMPSON,ANDHIROSHISUZUKITheATMForumhasdevisedaATMnetworkmanagementmodelasshowninFigure1.Figure1:ATMNetworkManagementModelTheATMnetworkmanagementmodeldefinesfiveworkareasfornetworkmanagement:•ManagementofATMenddevices(M1)•ManagementofprivateATMnetworksorswitches(M2)•Managementlinksbetweenpublicandprivatenetworks(M3)•Managementofpublicnetworks(M4)•Managementlinksbetween2publicnetworks(M5)AToMMIBisanSNMPversion2MIBdevelopedbytheIETF(InternetEngineeringTaskForce)forATMmanagement.Afterayear(and8revisions)ofdevelopment,itwasreleasedinAugust1994asRFC1695.Itsupportssemanticsforthemonitoringandsetupofvirtualcircuits.Workdonebyco-authorsatNECincludesATMForumsubmissionsfordefinitionsnecessaryforATMauto-discoverysupport[1].TheOpenViewnetworkmanagementsystemdescribedinthispapersupportsM1andM2stylemanagementinterfaces.TheSNMPagent,whichwasalsodevelopedinthisproject,usesinformationfromtheUNIILMIforreportingtomanagementfunctionsthroughAToMMIB.1.3OPENVIEWOpenViewwaschosenasthedevelopmentplatformforthisproject.PublishedindependentstudiesofmarketshareandofavailableapplicationsforvariousnetworkmanagementdevelopmentM3M5M2M4M4CorporateManagementSyetmTelco1ManagementSyetmTelco2ManagementSyetmPublicATMNetworkPublicATMNetworkPrivateATMNetworkATMDeviceM1UNIUNIUNIANOPENVIEWBASEDATMNETWORKMANAGEMENTSYSTEM67platformsconfirmedthemarketplaceacceptanceofOpenViewasan“OpenPlatform”.Asummaryofhistoricalandprojectedfiguresforvariousplatformalternativesisshowninfigure21.Figure2:OpenViewMarketPerformance1.4NEC/CITRDEVELOPMENTPROGRAMTheNEC/CiTRjointdevelopmentprogrambeganinmid-1993.Theprogramconcentratesonimplementingproof-of-conceptnetworkmanagementprototypesbasedonopenstandards.Theproof-of-conceptsoftwaredevelopedbyCiTRisprovidedtoNECasaninputtothefurthercommercialproductdevelopmentactivities.TheNECdevelopmentprogramhasresultedintheNECATOMVIEWproduct.Thispaperconcentratesontheproof-of-conceptdevelopmentprogramonly.TheearlyadoptionanduseofrecommendationsanddraftsfrombodiessuchasATMForumandtheIETFisanimportantcomponentofthedevelopmentproject,andprovidesvaluableexperienceforlaterproductimplementations.Thedevelopmentprogramisstructuredasaseriesofphaseddevelopments,withanumberoffunctionalityreleasesineachphase.Inlatersectionsofthispaperthefunctionalitydefinedinthesephasesisdescribed.2PHASE1DEVELOPMENTPROJECT2.1FUNCTIONALITYThePhase1developmentprojectbuiltabasicATMnetworkmanagement