PACKET TRANSFER DEVICE

PROBLEM TO BE SOLVED: To suppress power consumption by making transfer performance minimum, and to secure the communication quality of an important packet in a packet transfer device which changes packet transfer performance according to a packet load. SOLUTION: A packet transfer device 200 has a measuring portion measuring a packet load for each importance degree of a packet, an estimation portion estimating a future packet load for each importance degree based on a measurement result, a performance determination portion determining performance for an operation based on an estimated load which are provided in, for example, a traffic estimation/performance determination portion 100. Reduction in a power consumption and the assurance of the communication quality of an important packet are achieved by minimum performance determination based on an important packet estimation load in the performance determination portion and a preferential process of the important packet in the packet transfer device. COPYRIGHT: (C)2010,JPO&INPIT