With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
docsIfCmtsCmStatusMicroreflections
DOCSIS If Cmts Cm Status Microreflections
1.3.6.1.4.1.2011.2.25.127.1.3.3.1.14
Total microreflections, including in-channel response as perceived on this interface, measured in dBc below the signal level. This object is not assumed to return an absolutely accurate value, but it gives a rough indication of microreflections received on this interface. It is up to the implementer to provide information as accurately as possible. Discontinuities in the value of this counter can occur at reinitialization of the managed system, and at other times as indicated by the value of ifCounterDiscontinuityTime for the associated ifIndex.
Back to DOCS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor docsIfCmtsCmStatusMicroreflections 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.