Network apparatus, performance control method, and network system

A performance control method for controlling transfer performance of a network apparatus for transferring packets,

• the network apparatus including a transfer part for transferring received packets to a given destination and a determining part for obtaining traffic volume of the packets to be transferred,
• the performance control method including steps of:
• determining, by the determining part, periodicity of changes to the traffic volume;
• predicting, by the determining part, traffic volume after a predetermined period of time with use of the determined periodicity;
• and
• controlling, by the determining part, transfer performance of the transfer part based on a result of the traffic volume prediction.

A network system, comprising:

• a first network apparatus for transferring packets;
• and
• a second network apparatus which is coupled one of upstream and downstream of the first network apparatus,
• wherein the first network apparatus and the second network apparatus each includes a transfer part for transferring received packets to a given destination and a determining part for obtaining traffic volume of the packets to be transferred,
• wherein the determining part of the first network apparatus monitors transfer of packets that contain requests for services provided by a server, predicts traffic volume after a predetermined period of time with use of the count of the monitored requests, and transmits the predicted traffic volume to the second network apparatus, and
• wherein the determining part of the second network apparatus controls transfer performance of the transfer part of the second network apparatus based on a result of the traffic volume prediction which is transmitted from the first network apparatus.