With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccwbRFChanQamMacAddress
Cisco Cable WIDEBAND RF Chan Qam Mac Address
1.3.6.1.4.1.9.9.479.1.2.1.3
The MAC address of the edge QAM device or next hop router which might be present between the WCMTS and the edge QAM.
Back to CISCO-CABLE-WIDEBAND-MIB MIB page.
IPHost Network monitor allows you to monitor ccwbRFChanQamMacAddress 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.