With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
Cisco Distributed Director Server Port Available
The default DFP availability metric value for the port of the server. This value is used if the DFP reported availability value is found to have timed out, has not been reported yet, or if the associated port for the virtual hostname has not been configured such that the correct availability can not be determined from the DFP information. If the default availability has been configured for both the port and the server, the port specific value will be used.
Back to CISCO-DIST-DIRECTOR-MIB MIB page.
IPHost Network monitor allows you to monitor cddServerPortAvail on Cisco device via the SNMP protocol.
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Easy monitoring of cddServerPortAvail with IPHost tools