With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mpsStatRxMpoaEgressCachePurgeRequests
mps Stat Rx Mpoa Egress Cache Purge Requests
1.3.6.1.4.1.353.5.8.1.1.3.4.1.20
The number of MPOA Egress Cache Purges Requests received by this MPS. Discontinuities in the value of this counter can occur at re-initialization of the management system, and/or re-initialization of the MPS, and at other times, as indicated by the value of mpsDiscontinuityTime.
Back to MPOA-MIB MIB page.
IPHost Network monitor allows you to monitor mpsStatRxMpoaEgressCachePurgeRequests on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.