With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cddServerPortStatus
Cisco Distributed Director Server Port Status
1.3.6.1.4.1.9.9.197.1.3.2.1.9
Indicates whether the port service is available or not. The possible service statuses are as follows: undetermined - the service was not tested or the service state can't be determined. up - the service is known to be available. down - the service is known to be unavailable.
Back to CISCO-DIST-DIRECTOR-MIB MIB page.
IPHost Network monitor allows you to monitor cddServerPortStatus 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.