NMS

It may provide the ability to initialize, reconfigure, operate and shut down managed devices. .
             Accounting: Measures network utilization of individual users or groups to: .
             o Provide billing information .
             o Regulate users or groups .
             o Help keep network performance at an acceptable level .
             Performance Management: Measures various aspects of network performance including the gathering and analysis of statistical data about the system so that it may be maintained at an acceptable level. Performance management provides the ability to: .
             o Obtain the utilization and error rates of network devices .
             o Provide a consistent level of performance by ensuring that devices have a sufficient capacity. .
             Security Management: Controls access to network resources so that information can not be obtained without authorization by: .
             o Limiting access to network resources .
             o Providing notification of security breaches and attempts .
             Network Management Architecture.
             In general, network management systems have the same basic architecture, as shown .
             .
             The architecture consists of the following elements: .
             Network Management Station(s): The network management station runs the network management application that gathers information about managed devices from the management agent which resides within a managed device. The network management application typically must process large amounts of data, react to events, and prepare relevant information for display. It usually has a control console with a GUI interface which allows the operator to view a graphical representation of the network, control managed devices on the network and program the network management application. Some network management applications can be programmed to react to information collected from management agents and/or set thresholds with the following actions: .
             o Perform tests and automatic corrective actions (reconfiguration, shutdown of a managed device) .