Developing Network Management
The typical four major overall goals for network management are in the
Network users need to have thorough, up-to-date knowledge of the configuration and behavior of their networks.
The following table contains what are seen as the major processes and objectives.
|Design and Optimize||Implement and Change||Monitor and Diagnose|
|Data collection definition||Installation||Defining thresholds|
|Baseline creation||Configuration||Monitoring exceptions|
|Trend analysis||Address management||Isolating problems|
|Response time analysis||Adds, moves and changes||Validating problems|
|Capacity planning||Security management||Troubleshooting problems|
|Procurement||Accounting and billing||Bypassing and resolving problems|
|Topology design||Assets and inventory management|
|Most network management is reactive, though many
industries are moving towards a proactive approach.
Proactive Network Management. Proactive network management requires monitoring the network even when it isn't having any problems. Teare defines proactive network management as having the following characteristics.
Many corporations have network operation centers that include equipment, software and stuff that are dedicated to monitoring the health of the network. This staff may include help desk personnel and technicians who work on problems, as well as engineers and planners who develop long-term strategies to keep the network functioning.
When developing one's network management approach
Considering the diversity of networking equipment it is totally important to have network management systems that traverse this diversity of multi-platforms. In this vein, the next web page will be about SMNP - Simple Management Network Protocol.
Remote Monitoring. The SNMP Remote Monitoring - RMON standard allows for monitoring packet and traffic. RMON tracks the following items:
The administrator should be able to get historical views of RMON statistics based on user defined sample intervals, alarms based on user defined thresholds, and packet capture based on user defined filters.
The RMON specification comprises nine groups of managed objects. RMON agents can implement some or all of the following groups.
The Token Ring MIB adds enhancements for gathering data on specific Token Ring information, such as source route, ring configuration and ring station.
When used as agents on routers, RMON enables customers to view traffic events and alarms for the network segments that the router is on. By using a network management console, network managers can detect problems and gather information for developing a baseline understanding of the health of the network. Switches are also capable of implementing RMON.