Measures network utilization of individual users or groups to:
Provide billing information
Regulate users or groups
Help keep network performance at an acceptable level
3.2.5 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:
Obtain the utilization and error rates of network devices
Provide a consistent level of performance by ensuring that devices have a sufficient capacity.
3.2.6 Security Management:
Controls access to network resources so that information can not be obtained without authorization by:
Limiting access to network resources
Providing notification of security breaches and attempts
Network management software (network management applications and agents) is usually based upon a particular network management protocol and the network management capabilities provided with the software are usually based upon the functionality supported by the network management protocol. Most systems use open protocols; however, some network management software is based upon vendor specific proprietary protocols. The selection of network management software is driven by the following factors:
Network environment (scope and nature of the network)
Network management requirements
Cost
Operating systems involved