With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alActiveSessionDurationTable
ALTIGA Active Session Duration Table
1.3.6.1.4.1.3076.2.1.2.17.5
Top ten list of Duration users.
Back to ALTIGA-SESSION-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alActiveSessionDurationTable 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.