PACKET ANALYZING PROGRAM, PACKET ANALYZING METHOD, AND PACKET ANALYZING DEVICE

摘要

[Problem] To store packets selectively in accordance with the communication performance of a connection.[Solution] A packet analyzing device 100 accumulates an acquired packet in a first storage unit 110, and accumulates in a second storage unit 120 information relating to the communication performance of a connection over which the packet was communicated, in association with information representing the connection over which the packet was communicated. At prescribed time intervals, the packet analyzing device 100 records in a third storage unit 130 the information representing a certain connection, in association with an index value range from among a plurality of index value ranges including an index value representing the communication performance of said connection. The packet analyzing device 100 refers to the third storage unit 130 to extract packets communicated using connections corresponding to a specific index value range, from among packets that have been accumulated in the first storage unit 110 and for which a certain time has elapsed since acquisition, and stores said packets in a fourth storage unit 140.