Patent ID: 7644157

Claim:
A statistical information collecting system comprising: a statistical information collecting device including a first processor for computational processing, a first memory area connected to the first processor, a first interface connected to the first processor; and a collector device including a second processor for computational processing, a second memory area connected to the second processor, and a second interface connected to the statistical information collecting device and connected to the second processor; and the first processor receives packets, collects the statistical information of the received packets, and sends that collected statistical information to the collector device, flow information including flow identification conditions for identifying each flow that the received packets belongs to are stored in the first memory area, wherein the first processor sorts the collected statistical information of the packets into said each flow identified by the flow identification conditions, and searches the collected statistical information that was sorted into the flows, and decides a transmit interval for said each flow for sending the statistical information to the collector device, and wherein the statistical information contains a band of the each flow, wherein the first processor sets a predetermined sampling interval of the received packets based on the flow band contained in the collected statistical information and a flow type of said each flow, samples the received packets at the predetermined sampling interval, and sends sampled packet header information as the collected statistical information to the collector device.