The present invention includes a designating packet transferring step, a
measurement packet transmitting step and a measurement packet collecting
step. The designating packet transferring step is a step of transferring
a designating packet in a target section for a communication performance
measurement in the communication network, the designating packet
designating a relaying apparatus which adds information to the
measurement packet from among plural relaying apparatuses. The
measurement packet transmitting step is a step of transmitting a
measurement packet from one end of the target section. The measurement
packet collecting step is a step of collecting the measurement packet
transferred in the target section from among measurement packets which
are transmitted in the measurement packet transmitting step.