A network management system provides the means to configure, control, and diagnose several entities in the network. Several management functions can be considered:

• Configuration and registration of the network and its entities.
• Control giving access to the controlling functions of the network entities such as start-up, and shutdown.
• Fault diagnostics providing assistance in diagnosing problems.
• Notification providing alerting capabilities and allowing the definition of alarm rule expressions.
• Performance statistics are required for performance analysis and parameter tuning. An historian can collect and store this data over selected periods of time, allowing a more long-term analysis.

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