With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipsIsakmpKeepaliveInterval
Cisco IPsec Isakmp Keepalive Interval
1.3.6.1.4.1.9.10.62.1.1.3
The value of this object is time interval in seconds between successive ISAKMP keepalive heartbeats issued to the peers to which IKE tunnels have been setup.
Back to CISCO-IPSEC-MIB MIB page.
IPHost Network monitor allows you to monitor cipsIsakmpKeepaliveInterval on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.