| 摘要 |
<p>A packet generation unit (10) generates a predetermined number of measurement packets at predetermined transmission intervals which increase in equal increments, and a transmission/reception unit (13) transmits the measurement packets to a reception device (2) in accordance with control performed by a transmission control unit (12). A calculation unit (21) calculates usable bandwidth in accordance with the reception intervals of the measurement packets received by a transmission/reception unit (20), and the transmission/reception unit (20) transmits the usable bandwidth to a transmission device (1). A resolution alteration unit (14) determines, in accordance with the usable bandwidth received by the transmission/reception unit (13), whether or not to alter measurement resolution. A size alteration unit (15) alters the minimum packet size, maximum packet size and packet size increment size if the resolution alteration unit (14) determines that the measurement resolution is to be altered. The packet generation unit (10) newly generates measurement packets in accordance with the altered values.</p> |
