With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
bsnAPIfPhyChannelNumber
bsn AP If Physical Channel Number
1.3.6.1.4.1.14179.2.2.2.1.4
Current channel number of the AP Interface. Channel numbers will be from 1 to 14 for 802.11b interface type. Channel numbers will be from 34 to 169 for 802.11a interface type. Allowed channel numbers also depends on the current Country Code set in the Switch. This attribute cannot be set unless bsnAPIfPhyChannelAssignment is set to customized else this attribute gets assigned by dynamic algorithm.
Back to AIRESPACE-WIRELESS-MIB MIB page.
IPHost Network monitor allows you to monitor bsnAPIfPhyChannelNumber 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.
