With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdxSpecMgmtGroup
Cisco DOCSIS Spec Management Group
1.3.6.1.4.1.9.9.116.3.2.6
Group of objects implemented in Cable Modem Termination Systems (CMTS) cable interfaces for automated upstream spectrum management.
Back to CISCO-DOCS-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cdxSpecMgmtGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.