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Monitoring Performance and Health of the IAS Server

The RADIUS authentication protocol distinguishes between the client function and the server function. In RADIUS authentication, clients send Access-Request packets, and servers reply with Access-Accept, Access-Reject, and Access-Challenge packets. Typically, NAS devices perform the client function and implement the RADIUS authentication client MIB, and RADIUS authentication servers perform the server function and implement the RADIUS authentication server MIB.

The two most commonly used counters for IAS performance monitoring are:

  • Access Requests/sec

  • Accounting Requests/sec

The most common counters used for health monitoring are described in the following section.

For more information about SNMP MIBs supported by IAS, see "Simple Network Management Protocol Service" in the TCP/IP Core Networking Guide .

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