With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
csiInterfaceInFrameRate
csi Interface In Frame Rate
1.3.6.1.4.1.9.9.378.1.1.3.1.2
Number of incoming frames per second on this interface.
Back to CISCO-SVC-INTERFACE-MIB MIB page.
IPHost Network monitor allows you to monitor csiInterfaceInFrameRate 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.