Patent ID: 8185056

Claim:
A load testing system comprising: a transmission device that transmits test data used to evaluate performance of a network that relays user data transmitted from a user terminal; and a reception device that receives the test data from the transmission device and evaluates the performance of the network, wherein the transmission device includes: a first processor that is operative to store the user data in a buffer, when receiving the user data transmitted from the user terminal, to measure, in real time, a bandwidth of the user data transmitted from the user terminal and stored in the buffer, to calculate a calculation bandwidth by subtracting the bandwidth of the measured user data from an evaluation bandwidth preset to evaluate the performance of the network, and a transmitter that transmits the test data corresponding to the calculated calculation bandwidth with the user data corresponding to the bandwidth of the measured user data stored in the buffer, and the reception device includes: a receiver that receives the user data and the test data transmitted with the user data from the transmitter, and a second processor that is operative to evaluate the performance of the network based on the user data and the test data received by the receiver.