Network Management Fundamentals

Dr. Alexander Clemm, Ph.D. is a Senior Architect with Cisco Systems. He has been involved with integrated management of networked systems and services since 1990. Alex has provided technical leadership for many network management development and engineering efforts from original conception to delivery to the customer. They include management instrumentation of network devices, turnkey management solutions for packet telephony and managed services, and management systems for Voice over IP networks, broadband access networks, and provisioning of residential subscriber services. Alex has approximately 30 publications related to network management and 15 patents pending. He is on the Organizing Committee or Technical Program Committee of the major technical conferences in the field, including IM, NOMS, DSOM, IPOM, and MMNS, and he served as Technical Program Co-chair of the 2005 IFIP/IEEE International Symposium on Integrated Network Management. He holds a Ph.D. degree from the University of Munich and a Master’s degree from Stanford University.

• IntroductionPart I Network Management: An OverviewChapter 1 Setting the StageDefining Network ManagementAnalogy 1: Health Care—the Network, Your Number One PatientAnalogy 2: Throwing a PartyA More Formal DefinitionThe Importance of Network Management: Many Reasons to CareCostQualityRevenueThe Players: Different Parties with an Interest in Network ManagementNetwork Management UsersNetwork Management ProvidersNetwork Management Complexities: From Afterthought to Key TopicTechnical ChallengesOrganization and Operations ChallengesBusiness ChallengesChapter SummaryChapter ReviewChapter 2 On the Job with a Network ManagerA Day in the Life of a Network ManagerPat: A Network Operator for a Global Service ProviderChris: Network Administrator for a Medium-Size BusinessSandy: Administrator and Planner in an Internet Data CenterObservationsThe Network Operator’s Arsenal: Management ToolsDevice Managers and Craft TerminalsNetwork AnalyzersElement ManagersManagement PlatformsCollectors and ProbesIntrusion Detection SystemsPerformance Analysis SystemsAlarm Management SystemsTrouble Ticket SystemsWork Order SystemsWorkflow Management Systems and Workflow EnginesInventory SystemsService Provisioning SystemsService Order–Management SystemsBilling SystemsChapter SummaryChapter ReviewChapter 3 The Basic Ingredients of Network ManagementThe Network DeviceManagement AgentManagement Information, MOs, MIBs, and Real ResourcesBasic Management Ingredients—RevisitedThe Management SystemManagement System and Manager RoleA Management System’s Reason for BeingThe Management NetworkNetworking for ManagementThe Pros and Cons of a Dedicated Management NetworkThe Management Support Organization: NOC, NOC, Who’s There?Managing the ManagementInside the Network Operations CenterChapter SummaryChapter ReviewPart II Management PerspectivesChapter 4 The Dimensions of ManagementLost in (Management) Space: Charting Your Course Along Network Management DimensionsManagement Interoperability: “Roger That”Communication Viewpoint: Can You Hear Me Now?Function Viewpoint: What Can I Do for You Today?Information Viewpoint: What Are You Talking About?The Role of StandardsManagement Subject: What We’re ManagingManagement Life Cycle: Managing Networks from Cradle to GravePlanningDeploymentOperationsDecommissioningManagement Layer: It’s a Device... No, It’s a Service... No, It’s a BusinessElement ManagmentNetwork ManagementService ManagementBusiness ManagementNetwork ElementAdditional ConsiderationsManagement Function: What’s in Your ToolboxManagement Process and Organization: Of Help Desks and Cookie CuttersChapter SummaryChapter ReviewChapter 5 Management Functions and Reference Models: Getting OrganizedOf Pyramids and Layered CakesFCAPS: The ABCs of ManagementF Is for FaultC Is for ConfigurationA Is for AccountingP Is for PerformanceS Is for SecurityLimitations of the FCAPS CategorizationOAM&P: The Other FCAPSFAB and eTOM: Oh, Wait, There’s MoreHow It All Relates and What It Means to You: Using Your Network Management ABCsChapter SummaryChapter ReviewPart III Management Building BlocksChapter 6 Management Information: What Management Conversations Are All AboutEstablishing a Common Terminology Between Manager and AgentMIBsThe Managed Device as a Conceptual Data StoreCategories of Management InformationThe Difference Between a MIB and a DatabaseThe Relationship Between MIBs and Management ProtocolsMIB DefinitionsOf Schema and MetaschemaThe Impact of the Metaschema on the SchemaA Simple Modeling ExampleEncoding Management InformationAnatomy of a MIBStructure of Management Information—OverviewAn Example: MIB-2Instantiation in an Actual MIBSpecial MIB Considerations to Address SNMP Protocol DeficitsModeling Management InformationChapter SummaryChapter ReviewChapter 7 Management Communication Patterns: Rules of ConversationLayers of Management InteractionsTransportRemote OperationsManagement OperationsManagement ServicesManager-Initiated Interactions—Request and ResponseInformation Retrieval—Polling and Polling-Based ManagementConfiguration OperationsActionsManagement TransactionsAgent-Initiated Interactions: Events and Event-Based ManagementEvent TaxonomyThe Case for Event-Based ManagementReliable EventsOn the Difference Between “Management” and “Control”Chapter SummaryChapter ReviewChapter 8 Common Management Protocols: Languages of ManagementSNMP: Classic and Perennial FavoriteSNMP “Classic,” a.k.a. SNMPv1SNMPv2/ SNMPv2cSNMPv3CLI: Management Protocol of Broken DreamsCLI OverviewUse of CLI as a Management Protocolsyslog: The CLI Notification Sidekicksyslog Overviewsyslog Protocolsyslog DeploymentNetconf: A Management Protocol for a New GenerationNetconf DatastoresNetconf and XMLNetconf ArchitectureNetconf OperationsNetflow and IPFIX: “Check, Please,” or, All the Data, All the TimeIP FlowsNetflow ProtocolChapter SummaryChapter ReviewChapter 9 Management Organization: Dividing the LaborScaling Network ManagementManagement ComplexityManagement HierarchiesManagement StylesManagement MediationMediation Between Management TransportsMediation Between Management ProtocolsMediation of Management Information at the Syntactic LevelMediation of Management Information at the Semantic LevelStateful MediationChapter SummaryChapter ReviewPart IV Applied Network ManagementChapter 10 Management Integration: Putting the Pieces TogetherThe Need for Management IntegrationBenefits of Integrated ManagementNontechnical Considerations for Management IntegrationDifferent Perspectives on Management Integration NeedsThe Equipment Vendor PerspectiveIntegration Scope and ComplexityManagement Integration ChallengesManaged DomainSoftware ArchitectureQuantifying Management Integration ComplexityApproaches to Management IntegrationAdapting Integration Approach and Network Provider OrganizationPlatform ApproachCustom Integration ApproachContaining Complexity of the Managed DomainChapter SummaryChapter ReviewChapter 11 Service Level Management: Knowing What You Pay ForThe Motivation for Service Level AgreementsIdentification of Service Level ParametersSignificanceRelevanceMeasurabilityDefining a Service Level AgreementDefinition of Service Level ObjectivesTracking Service Level ObjectivesDealing with Service Level ViolationsManaging for a Service LevelDecomposing Service Level ParametersPlanning Networks for a Given Service LevelService Level Monitoring—Setting Up Early Warning SystemsService Level Statistics—It’s Fingerpointin’ GoodChapter SummaryChapter ReviewChapter 12 Management Metrics: Assessing Management Impact and EffectivenessNetwork Management Business ImpactCost of OwnershipEnabling of RevenuesNetwork AvailabilityTrading Off the Benefits and Costs of Network Management InvestmentsFactors that Determine Management EffectivenessManaged Technology—ManageabilityManagement Systems and Operations Support InfrastructureManagement OrganizationAssessing Network Management EffectivenessManagement Metrics to Track Business ImpactManagement Metrics to Track Contribution to Management EffectivenessDeveloping Your Own Management BenchmarkAssessing and Tracking the State of ManagementUsing Metrics to Direct Management InvestmentChapter SummaryChapter ReviewPart V Appendixes Appendix A Answers to Chapter ReviewsAppendix B Further ReadingGlossary1587201372 TOC 11/3/2006