With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dsgIfChannelIndex
dsg If Channel Index
The index for each downstream frequency that contains the DSG tunnel(s).
Back to DSG-IF-MIB MIB page.
IPHost Network monitor allows you to monitor dsgIfChannelIndex 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.