With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccStatusLastFailureAddMember
Cisco Cluster Status Last Failure Add Member
1.3.6.1.4.1.9.9.134.1.1.9
The reason why the last NMS was unable to add a switch to be a member of the cluster. password: The member has an enable password configured. overmax: Adding the member exceeds the maximum number of cluster members supported by the command switch. See ccStatusMaxNumberOfMembers. noncandidate: The member is not a candidate switch, or it does not show up in the candidate table. memberNumberInUse: The member number is used by an existing member in the cluster. unreachable: The member is a candidate but is unreachable or has no connectivity.
Back to CISCO-CLUSTER-MIB MIB page.
IPHost Network monitor allows you to monitor ccStatusLastFailureAddMember on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.
