With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mediaIndependentTable
media Independent Table
1.3.6.1.2.1.16.21.1
Media independent statistics for promiscious monitoring of any media. The following table defines media independent statistics that provides information for full and/or half-duplex links as well as high capacity links. For half-duplex links, the mediaIndependentOut* objects will not be present. For full-duplex links, the mediaIndependentOut* objects will be present. Whenever possible, the probe should count packets moving away from the closest terminating equipment as output packets. Failing that, the probe should count packets moving away from the DTE as output packets.
Back to HC-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor mediaIndependentTable 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.