With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
docsIfCmStatusTxPower
DOCSIS If Cm Status Tx Power
1.3.6.1.4.1.2011.2.25.127.1.2.2.1.3
The operational transmit power for the attached upstream channel.
Back to DOCS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor docsIfCmStatusTxPower 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.
