Patent ID: 8089979
Filing Date: 2012-01-03
Classification: H04L

Abstract:
1. A packet relay apparatus for performing packet relay control, comprising: an input network interface block comprising: an output network interface block comprising: a switch block to switch the packets output from the input network interface block to the output network interface block; wherein the schedule management block calculates a time difference between the arrival time of the packet and an arrival time of a packet arrived immediately therebefore, calculates a correction time by correcting the time difference with a delay time required for packet processing in the apparatus, gives a readout instruction for the output-interval-control packet after counting of the time difference when the correction time is a zero time, and gives a readout instruction for the output-interval-control packet after counting of the correction time when the correction time is a non-zero time, wherein the delay time is a time difference between a valid readout time and a packet output time, the valid readout time indicating a time at which the readout instruction of a sending packet output a previous time is given to the packet readout block, and the packet output time indicating a time at which the sending packet is output from the packet readout block.