With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vsiSessionTrapEnable
vsi Session Trap Enable
1.3.6.1.4.1.9.9.162.1.6
If this object is true, both vsiSessionUp and vsiSessionDown notifications are enabled.
Back to CISCO-VSIMASTER-MIB MIB page.
IPHost Network monitor allows you to monitor vsiSessionTrapEnable 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.