Patent ID: 11909658
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A path control device configured to control a plurality of paths for transmitting a plurality of signals through a network including a plurality of signal transfer devices, each of which being configured to transfer the signals while switching a first transmission period during which high-priority traffic is transmitted and a second transmission period during which low-priority traffic is transmitted,
the path control device comprising:
a processor; and
a storage medium having computer program instructions stored thereon, when executed by the processor, perform to:
calculate the plurality of paths through which a plurality of signals are transferred, based on network configuration information indicating a configuration of the network;
in a case in which the signal transfer device detects an end of high-priority traffic in the first transmission period, in accordance with a statistical value in the second transmission period based on a transmission schedule made for changing the first transmission period after the end of the high-priority traffic to the second transmission period, estimate the second transmission period in the plurality of paths, determine the number of low-priority traffic flows to be accommodated, and determine or change the path for low-priority traffic at a shorter cycle than a cycle at which the number of low-priority traffic flow is determined; and
determine, for each of the plurality of signal transfer devices, output destination setting information such that the plurality of paths are set to an output destination of low-priority traffic.