Patent ID: 8180934

Claim:
A device monitoring apparatus that transmits a first information acquisition request to a device on a network and monitors a state of the device based on a response therefrom, comprising: a determination unit configured to determine a state of the device to be monitored; a stop unit configured, when said determination unit determines that the device to be monitored is in a particular state, to stop transmitting the first information acquisition request to the device; a first instruction unit configured, when said determination unit determines that the device to be monitored is in a particular state, to instruct a processing apparatus on the network to start transmitting to the device a second information acquisition request, wherein the second information acquisition request is a request for acquiring information more limited than information acquired by transmission of the first information acquisition request; a second instruction unit configured, when the device in the particular state shifts into another state, to instruct cause the processing apparatus to stop transmitting the second information acquisition request to the device; a restart unit configured, when the device in the particular state shifts into another state, to restart transmitting the first information acquisition request to the device; and wherein the first information acquisition request is a request to acquire a value from a database including a predetermined standard MIB and an arbitrary private MIB, and the second information acquisition request is a request to acquire a value from a part of the database.