With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdxIfCmtsCmStatusLastResetTime
Cisco DOCSIS If Cmts Cable Modem Status Last Reset Time
1.3.6.1.4.1.9.9.116.1.3.2.1.13
The last cable modem connectivity statistics reset time. If the value of this object is '0', then the cable modem connectivity statistics had not been reset.
Back to CISCO-DOCS-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cdxIfCmtsCmStatusLastResetTime on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.
