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Discuss policy-based management and RMON and their limitations.

Discuss policy-based management and RMON and their limitations.

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Policy-based management is an administrative approach that is used to simplify the management of a given endeavor by establishing policies to deal with situations that are likely to occur.

In the computing world, policy-based management is used as an administrative tool throughout an enterprise or network, or on workstations that have multiple users. Policy-based management includes policy-based network management, the use of delineated policies to control access to and priorities for the use of resources. Policy-based management is often used in systems management.

RMON stands for remote monitoring MIB. It refers to a capability to delegate certain management functionality to so-called RMON probes using SNMP. RMON probes reside near the monitored network elements, sometimes in the devices themselves. They offer functions that include threshold-crossing alerts, periodic polling and statistics collection of performance-related MIB variables, and event filtering and subscription capabilities, all of which are remotely controlled through a MIB.

Limitations

If the alarm variables configured in RMON alarm function are MIB variables defined in the statistics group or history group, the Ethernet or history statistics collection must be configured on the monitored Ethernet interface first.

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