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1. (WO2017154939) NETWORK SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD

Pub. No.:    WO/2017/154939    International Application No.:    PCT/JP2017/009108
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: H04L 12/715
Applicants: FURUKAWA ELECTRIC CO., LTD.
古河電気工業株式会社
Inventors: RIKISO, Masahiro
力宗 真寛
MIURA, Masayuki
三浦 昌之
Title: NETWORK SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD
Abstract:
[Problem] To reduce the buffer capacity needed for memory, and also to suppress the occurrence of unnecessary communication. [Solution] A network system having at least a communication device 10 at the source of transmission, a communication device 60 at the destination of transmission, and an intermediate communication device 20 disposed between the communication device at the source of transmission and the communication device at the destination of transmission, the intermediate communication device having a function for connecting together sub-networks that construct a communication route with mutually independent route construction protocols, wherein the intermediate communication device 20 is characterized by having a route establishment means (control unit 22) for establishing a route to the communication device 60 at the destination of transmission when a packet addressed to the communication device 60 at the destination of transmission is received from the communication device 10 at the source of transmission, and a proxy response means (control unit 22) for responding to the communication device 10 at the source of transmission as a proxy for the communication device 60 at the destination of transmission when the route is established by the route establishment means.