With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cseFlowTotalFlows
CISCO SWITCH ENGINE Flow Total Flows
1.3.6.1.4.1.9.9.97.1.2.26.1.1
Indicates the total number of flow entries installed in this switching engine.
Back to CISCO-SWITCH-ENGINE-MIB MIB page.
IPHost Network monitor allows you to monitor cseFlowTotalFlows 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.