With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cefResourceTable
CISCO Express Forwarding Resource Table
1.3.6.1.4.1.9.9.492.1.4.2
This table contains global resource information of CEF on the Managed device.
Back to CISCO-CEF-MIB MIB page.
IPHost Network monitor allows you to monitor cefResourceTable 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.