System for managing information in nodes provided for network, and nodes

A node information management system including a plurality of nodes each of which is connected through a network so that they can communicate with each other and a node information collecting apparatus connected to each of said nodes so that it can communicate therewith in order to collect predetermined information regarding each of said plurality of nodes,

• wherein each of said nodes comprises:
• a node information memory unit which stores the predetermined information regarding the node itself which was formed by the node itself every formation of said predetermined information;
• a node information transmitting unit which supplies said predetermined information stored in said node information memory unit of the node itself to another node connected adjacently to the node itself through said network;
• and
• a backup node information memory unit which stores said predetermined information supplied from said node information transmitting unit of said another node as backup information.