Traffic control apparatus and data communication system including same

摘要

The present invention relates to a traffic control apparatus and the like for optimizing a communication performance of each of local networks to be monitored. The traffic control apparatus (100) temporarily stores in the memory (120) communication band information items of relay nodes (211B, 212B, 213B) through the I/O (140). The controller (110) specifies a bottleneck relay node based on the obtained communication band information items, calculates transmittable/receivable bands to be allocated to the PCs (220B), and notifies the PCs (220B) of the calculated transmittable/receivable bands. In response to this notification, the PCs (220B) divide data to be transmitted, with the divided data corresponding to the allocated bands, and transmit the divided data to the Internet (10), in a manner that the divided data are arranged temporally evenly.

主权项

1. A data communication system, comprising:
a data communication network enabling two-way data communication; one or more local networks that are each configured by a plurality of information terminals and connected to the data communication network via a representative node; and a traffic control apparatus, which sets, as a monitoring target network, a local network connected to the data communication network outside the local network via the representative node, and which is connected to the data communication network or arranged to configure a part of the local network, wherein the traffic control apparatus comprises: input/output means for transmitting/receiving data to/from one or more relay nodes that are disposed in an area between the plurality of information terminals and the representative node and include the representative node; recording means for temporarily storing a communication band information item of each of the one or more relay nodes as a traffic information item of each of the one or more relay nodes; and control means for specifying a bottleneck relay node from among the one or more relay nodes based on the communication band information items stored in the recording means, and calculating transmittable/receivable bands to be respectively allocated to operating information terminals out of the plurality of information terminals belonging to the local network, in a manner that a total value of the transmittable/receivable bands does not exceed a communication band of the specified relay node, and moreover notifying the operating information terminals, of the calculated transmittable/receivable bands, via the input/output means, wherein each of the operating information terminals generates the data to be transmitted while adjusting data amount thereof based on the transmittable/receivable band allocated thereto, and wherein, after adjustment of the data amount of the data to be transmitted, each of the operating information terminals divides the data to be transmitted which have the adjusted data amount, and transmits the divided data to the data communication network, in a manner that the divided data are temporally arranged substantially evenly so as not to exceed the allocated band.