With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cefSwitchingHCDrop
CISCO Express Forwarding Switching HC Dropped
1.3.6.1.4.1.9.9.492.1.8.2.1.4
Number of packets dropped by CEF. This object is a 64-bit version of cefSwitchingDrop.
Back to CISCO-CEF-MIB MIB page.
IPHost Network monitor allows you to monitor cefSwitchingHCDrop 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.