With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfhPlaneStatsUnicastLostCells
Cisco Enhanced Benes Fabric Plane Stats Unicast Lost Cells
1.3.6.1.4.1.9.9.257.1.2.2.1.6
The accumulated number of unicast cell loss for this plane. The lost cells are ones that had to be dropped because of queue overflow, or some such reason.
Back to CISCO-FABRIC-HFR-MIB MIB page.
IPHost Network monitor allows you to monitor cfhPlaneStatsUnicastLostCells 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.