With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfmeFlowBitRate
cfme Flow Bit Rate
1.3.6.1.4.1.9.9.692.3.1.7
This object identifier represents the monitored element describing the average rate at which a flow monitor processes bits contained by packets for a traffic flow during the last measurement interval (cfmFlowMetricsIntBitRate).
Back to CISCO-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cfmeFlowBitRate on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.