With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
caclInVpiVciErrCells
Cisco ATM cell layer In Virtual Path Identifier Vci Error Cells
1.3.6.1.4.1.9.9.133.1.2.1.1.6
The number of cells received from the interface with unknown Vpi/Vci values.
Back to CISCO-ATM-CELL-LAYER-MIB MIB page.
IPHost Network monitor allows you to monitor caclInVpiVciErrCells on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.