With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
atmVplStatClp0Discards
Cisco ATM Vpl Statistics Clp 0 Discards
1.3.6.1.2.1.37.1.14.1.9.1.4
The total number of valid ATM cells received with CLP=0 and discarded by the traffic policing entity.
Back to ATM2-MIB MIB page.
IPHost Network monitor allows you to monitor atmVplStatClp0Discards 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.