With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvpdnSessionOutGoingQueueSize
cvpdn Session Out Going Queue Size
1.3.6.1.4.1.9.10.51.1.2.1.1.19
The object reflects the queue size of out going queue.
Back to CISCO-VPDN-MGMT-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cvpdnSessionOutGoingQueueSize 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.