With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
caclOutRcvValidRMCells
Cisco ATM cell layer Out Receive Valid RM Cells
1.3.6.1.4.1.9.9.133.1.2.1.1.25
The number of Valid RM cells received by the interface from the switch fabric.
Back to CISCO-ATM-CELL-LAYER-MIB MIB page.
IPHost Network monitor allows you to monitor caclOutRcvValidRMCells 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.