Patent ID: 7904613
Filing Date: 2011-03-08
Classification: G03G,G06F,H04N

Abstract:
1. A network device comprising: an information storage configured to store information; a determination unit configured to determine, when a new RDF Site Summary (RSS) information unit is generated in accordance with occurrence of an event, whether an amount of RSS information units stored in said information storage has exceeded a capacity of said information storage; a deletion unit configured to, when said determination unit determines that the amount of the RSS information units has exceeded the capacity of said information storage, delete the RSS information units stored in said information storage in ascending order of levels corresponding to the RSS information units, thereby securing a free area for the newly generated RSS information unit; and a generator configured to generate, in accordance with occurrence of an event, a new RSS information unit indicating the occurrence of the event and storing the RSS information unit in said information storage together with a level corresponding to the event, wherein said generator comprises a controller for performing control to, if the event that has occurred is a failure event, associate a unique identifier corresponding to a type of the failure with the generated RSS information unit and assign a level higher than those of events other than the failure event to the generated RSS information unit, and if the event that has occurred is a recovery event from a failure, search the stored RSS information units for an RSS information unit with which an identifier corresponding to the solved failure is associated and lower a level given to the RSS information unit.