With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
Cisco Distributed Director Server Admin
The administrative preference metric value for the server. It specifies the preference of one server over another (the larger the number, the lower the preference). Setting this object to the value '0' will take the server out-of-service. Setting this object to the value '-1' will disable the usage of this metric.
Back to CISCO-DIST-DIRECTOR-MIB MIB page.
IPHost Network monitor allows you to monitor cddServerAdmin on Cisco device via the SNMP protocol.
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Easy monitoring of cddServerAdmin with IPHost tools