With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
caclIntervalInValidRMCells
Cisco ATM cell layer Interval In Valid RM Cells
1.3.6.1.4.1.9.9.133.1.2.2.1.12
The number of Valid RM cells received from the interface during 15 minute interval.
Back to CISCO-ATM-CELL-LAYER-MIB MIB page.
IPHost Network monitor allows you to monitor caclIntervalInValidRMCells on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.