Network Management
Understand the importance of configuration management and its two components: reconfiguration and documentation. Understand importance of fault management and its two components: reactive and proactive management. Understand the importance of performance management and its four measurements: capacity, traffic, throughput, and response time. Understand the importance of accounting management and the reason for using it.
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Chapter 16Network ManagementUnderstand the importance of configuration management andits two components: reconfiguration and documentation.Understand importance of fault management and its two components: reactive and proactive management. Understand the importance of performance management andits four measurements: capacity, traffic, throughput, and responsetime.Understand the importance of accounting management and the reason for using it.After reading this chapter, the reader should be able to:OBJECTIVESOBJECTIVES (continued)Be familiar with the SNMP protocol as a software managementtool.Be familiar with hardware management tools such as linemonitors and protocol analyzers.Figure 16-1Areas of network managementBusiness Focus: Network Manager Functions The following are some of the functions expected from a network manager: Monitor daily network operationSupport network usersManage budgetary issuesKeep abreast of the latest networking technologiesApply the general networking policy of the organizationCONFIGURATIONMANAGEMENT16.1Figure 16-2Configuration managementFAULTMANAGEMENT16.2Figure 16-3Fault managementPERFORMANCEMANAGEMENT16.3Figure 16-4Performance managementACCOUNTINGMANAGEMENT16.4SECURITYMANAGEMENT16.5NETWORKMANAGEMENTTOOLS16.6Technical Focus: SNMP VersionsSNMP has gone through three different versions: SNMPv1 was based on the network management principles defined by the OSI model. SNMPv2 was designed to be totally dependent on the Internet model. SNMPv3 is the latest version and adds security management to SNMPv2Figure 16-5SNMP conceptTechnical Focus: SMITo perform its job, SNMP uses other protocols. One of these protocols is called Structure of Management Information (SMI). SMI is used to do the following: 1. Universally and uniquely name objects to be managed. 2. Define the type of data that can be stored in objects. 3. Show how to encode data for transmission over the network. Technical Focus: MIBSMI uses another important protocol called ManagementInformation Base (MIB). SMI defines how a universalcollection of objects should be named and managed. MIB, on the other hand, defines which of these objects should be included in a particular agent.
