| 摘要 |
<p>A loop detecting device is provided which is capable of detecting a loop packet or a loop flow with less processing load. A sorting means 82 classifies packets from each of which information is extracted by a packet information extracting device, based on first predetermined information included in packet information, counts the number of the classified packets for each first predetermined information, and specifies first predetermined information in which a count result reaches greater than or equal to a first threshold value. A determining means 83 determines whether each packet having the first predetermined information specified by the sorting means 82 is a loop packet or whether each flow specified by the first predetermined information is a loop flow by using second predetermined information included in the packet information received by a receiving means 81 with the first predetermined information specified by the sorting means 82 as a target.</p> |
