With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cePfePerfCurrentTable
Cisco Entity Packet Forwarding Engine Performance Current Table
1.3.6.1.4.1.9.9.265.1.1.2
This table maintains PFE current running performance, which are collected at various measurement periods.
Back to CISCO-ENTITY-PFE-MIB MIB page.
IPHost Network monitor allows you to monitor cePfePerfCurrentTable 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.