In a management system for managing network devices connected to a network, it is considered to reduce the load of the network and the devices by preserving device information acquired from each device and not acquiring new information from the device for a predetermined period. However, this approach...http://www.google.ca/patents/US20030115314?utm_source=gb-gplus-sharePatent US20030115314 - NETWORK-DEVICE MANAGEMENT APPPARTUS AND METHOD, RECORDING MEDIUM, AND TRANSMISSION APPARATUS
