Patent ID: 8195764
Filing Date: 2012-06-05
Classification: H04L

Abstract:
1. An information delivery system comprising: a plurality of node devices which are connected each other via a network, the plurality of node devices comprising at least a first node device, a second node device and information saving node devices that save specific common information to be shared among the plurality of node devices, wherein: the first node device comprises: the second node device comprises: the information saving node device comprises: wherein the identification information transfer unit transfers, in response to judging the second node device itself is not the management node device and receiving the unavailable information, the identification information to a node device intervening between the second node device and the management node device, or transfers to the management node device in response to judging there is no node device intervening between the second node device and the management node device, the error reply unit sends, in response to judging the second node device itself is the management node device, a reply that there is no specific common information to the first node device, and the identification information includes request number information indicative of a requested number of the information regarding at least one of the information saving node devices; and the second node device further comprises: