With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdbpPeerPortListen
Cisco Diameter Base Protocol Peer Port Listen
1.3.6.1.4.1.9.10.133.1.3.1.1.4
The port the server is listening on.
Back to CISCO-DIAMETER-BASE-PROTOCOL-MIB MIB page.
IPHost Network monitor allows you to monitor cdbpPeerPortListen on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.