TRAFFIC MONITOR DEVICE

摘要

PROBLEM TO BE SOLVED: To compress and store traffic data in a way as close as to that of packets set through a channel for the Internet or the like. SOLUTION: The traffic monitor device uses a packet acquisition module 2 to extract a packet through asynchronous transfer mode ATM lines 1, 12 of the Internet and to extract a header part including an IP header, which is given to a traffic data storage module 3. Then the module 3 checks an outgoing/incoming network ID NID of the packet and a higher-ranking protocol of the IP from the header part, records the traffic data in a preset format based on the combination between the outgoing/incoming network ID and the higher-ranking protocol according to a preset format and stores the traffic data for each prescribed time while collecting the data of the same kind of the combination. Furthermore, the traffic data storage module 3 stores the traffic data having already been stored for the same kind while collecting the data for each same kind for each prescribed longer time.