With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgkLZoneStatsRcvdDisengageRequests
Cisco Gatekeeper L Zone Stats Received Disengage Requests
1.3.6.1.4.1.9.10.40.1.1.4.5.1.1
The number of Disengage Requests received for the local zone.
Back to CISCO-GATEKEEPER-MIB MIB page.
IPHost Network monitor allows you to monitor cgkLZoneStatsRcvdDisengageRequests on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.