Inconclusive ClusterXL detection is associated with the following scenario: A monitored interface in a two-member ClusterXL cluster is connected to a subnet. This subnet contains no other, directly connected network devices that can reply to ICMP Requests (Ping), as used by ClusterXL in its probing. There is also no other traffic from any other subnets transferring through these cluster members. The monitored interface fails. As a result of the disconnected interface, the cluster members cannot receive CCP packets from each other on that network. Furthermore, no other device on the subnet replies to any cluster member's ICMP probing. These conditions result in the cluster's inability to conclusively determine the cluster member associated with the failed interface.