With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdpInterfaceMessageInterval
Cisco Discovery Protocol Interface Message Interval
1.3.6.1.4.1.9.9.23.1.1.1.1.3
The interval at which CDP messages are to be generated on this interface. The default value is 60 seconds.
Back to CISCO-CDP-MIB MIB page.
IPHost Network monitor allows you to monitor cdpInterfaceMessageInterval on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.