With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
bsnAPPortNumber
bsn AP Port Number
1.3.6.1.4.1.14179.2.2.1.1.13
Port on the Switch on which this APs traffic is coming through.
Back to AIRESPACE-WIRELESS-MIB MIB page.
IPHost Network monitor allows you to monitor bsnAPPortNumber 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.