With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
bsnAPGroupsVlanMappingInterfaceName
bsn AP Groups Vlan Mapping Interface Name
1.3.6.1.4.1.14179.2.10.3.1.2
When an AP is associated with a site, and the site has an associated set of WLANs, then only those WLANs are beamed by the AP. Here 'bsnAPGroupsVlanMappingInterfaceName' is the interface to be used when a client connects to the 'bsnAPGroupsVlanMappingSsid' WLAN on this AP.
Back to AIRESPACE-WIRELESS-MIB MIB page.
IPHost Network monitor allows you to monitor bsnAPGroupsVlanMappingInterfaceName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.