McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Chapter 16 Network Management

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 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. After reading this chapter, the reader should be able to: O BJECTIVES

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 O BJECTIVES (continued) Be familiar with the SNMP protocol as a software management tool. Be familiar with hardware management tools such as line monitors and protocol analyzers.

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Figure 16-1 Areas of network management

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Business Focus: Network Manager Functions The following are some of the functions expected from a network manager: Monitor daily network operation Support network users Manage budgetary issues Keep abreast of the latest networking technologies Apply the general networking policy of the organization

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 CONFIGURATIONMANAGEMENTCONFIGURATIONMANAGEMENT 16.1

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Figure 16-2 Configuration management

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 FAULTMANAGEMENTFAULTMANAGEMENT 16.2

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Figure 16-3 Fault management

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 PERFORMANCEMANAGEMENTPERFORMANCEMANAGEMENT 16.3

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Figure 16-4 Performance management

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 ACCOUNTINGMANAGEMENTACCOUNTINGMANAGEMENT 16.4

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 SECURITYMANAGEMENTSECURITYMANAGEMENT 16.5

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 NETWORKMANAGEMENTTOOLSNETWORKMANAGEMENTTOOLS 16.6

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Technical Focus: SNMP Versions SNMP 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 SNMPv2

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Figure 16-5 SNMP concept

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Technical Focus: SMI To 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.

McGraw-Hill©The McGraw-Hill Companies, Inc., 2000 Technical Focus: MIB SMI uses another important protocol called Management Information Base (MIB). SMI defines how a universal collection of objects should be named and managed. MIB, on the other hand, defines which of these objects should be included in a particular agent.