With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
caonMessageSrcPort
Cisco AON Message Source Port
1.3.6.1.4.1.9.9.646.1.2.4
This object indicates the message source port number.
Back to CISCO-AON-STATUS-MIB MIB page.
IPHost Network monitor allows you to monitor caonMessageSrcPort on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.
