With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cagwFailedSecurityKeyExchange
Cisco's ASN Gateway Failed Security Key Exchange
1.3.6.1.4.1.9.9.638.1.3.1.1.1.85
The number of failed Security Key exchange related to handoff between base stations.
Back to CISCO-ASN-GATEWAY-MIB MIB page.
IPHost Network monitor allows you to monitor cagwFailedSecurityKeyExchange 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.