With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnfTopFlowsMatchDstPortLo
cnf Top Flows Match Dst Port Lo
1.3.6.1.4.1.9.9.387.1.7.20
The minimum value that the layer-4 destination port number in the flow must have in order to match. A value of -1 disables this match criteria.
Back to CISCO-NETFLOW-MIB MIB page.
IPHost Network monitor allows you to monitor cnfTopFlowsMatchDstPortLo 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.