With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cspanSessionAdminStatus
Cisco Switched Port Analyzer Session Admin Status
1.3.6.1.4.1.9.9.363.1.1.2.1.3
This object is used to suspend an active session or activate an inactive session. Note that setting the value to the existing value has no effect on the operation. i.e. setting the value to 'active' when session is 'active' has no effect.
Back to CISCO-FC-SPAN-MIB MIB page.
IPHost Network monitor allows you to monitor cspanSessionAdminStatus on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.