A network management station includes a processor, memory coupled to the processor, and computer executable instructions provided to the memory and executable by the processor. The computer executable instructions are configured to transmit a network management message to a network device connected to the network management station over a network, receive response information from the network device based on the network management message, receive unsolicited information from the network device, and apply fuzzy logic to the received information and the unsolicited information to produce information associated with the health of the network device.