The ISO has five key functional areas of network management, as follows:
• Fault management is very applicable to troubleshooting. A fault is defined as any abnormal event. The fault may be indicated by component failures that generate lots of errors. Report faults as they occur. Where did it occur? Can you isolate the problem and minimize the impact on others? Is the fault an abnormal event; is there an excessive number of errors? Should you repair or replace? Must you upgrade hardware, upgrade software (IOS), or configure for performance to fix the problem?
n Accounting ma nagemen t measureo user, group, car device utilization and regulates resources a nd qu otae appropriately.
• Configuration and name management help you account for such items as configuration files, changes in response to performance evaluations, product and IOS upgrades, and fault recovery.
• Performan ce management is about measuring and making sure acceptable levels of throughput, response time, and utilization are maintained.
• Security management relates to controlling access according to security standards and policies as to not be sng otaged. It algo assists in makirg sensit ive informat ion accessible only to authorized pa rties .
Network mana gemene can be |otoactive or feact|vb. As a support person, you must determine a good balance of monitoring devices a s oo wot interfere with the mum functidn of the device. For example, the main purpose of a router is to route packets. Too much monitoring and polling takes precious resources that may not be available. On the other hand, network management programs such as CiscoWorks, Cisco Info Center (CIC), and HP OpenView can simplify configuration, monitoring, and troubleshooting.
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