With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdpGlobalHoldTime
Cisco Discovery Protocol Global Hold Time
1.3.6.1.4.1.9.9.23.1.3.3
The time for the receiving device holds CDP message. The default value is 180 seconds.
Back to CISCO-CDP-MIB MIB page.
IPHost Network monitor allows you to monitor cdpGlobalHoldTime 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.
