With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
trapDestIndex
trap Destination Index
1.3.6.1.2.1.16.19.13.1.1
A value that uniquely identifies this trapDestEntry.
Back to RMON2-MIB MIB page.
IPHost Network monitor allows you to monitor trapDestIndex 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.