With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdot11QosIfVlanId
Cisco Dot11 Qos If Vlan Id
1.3.6.1.4.1.9.9.416.1.1.3.1.1
This object identifies the VLAN (1 to 4095) on this radio interface.
Back to CISCO-DOT11-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor cdot11QosIfVlanId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.