With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdxIfCmtsCmStatusAvgOnlineTime
Cisco DOCSIS If Cmts Cable Modem Status Average Online Time
1.3.6.1.4.1.9.9.116.1.3.2.1.5
The average period of time the modem stayed 'online' over the time period from the modem's first ranging message received by CMTS until now. The modem is considered as 'online' when the value for cdxCmtsCmStatusValue is any of the values: online(5), onlineNetAccessDisabled(6), onlineKekAssigned(7), and onlineTekAssigned(8), and the modem is considered as 'offline' for other values for cdxCmtsCmStatusValue.
Back to CISCO-DOCS-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cdxIfCmtsCmStatusAvgOnlineTime 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.