公开(公告)号：EP4366263A1

公开(公告)日：2024-05-08

申请号：EP21948244.5

申请日：2021-06-28

申请人： Nippon Telegraph And Telephone Corporation

发明人： ODA Takuya ,  OHARA Takuya ,  INUZUKA Fumikazu ,  HIGASHIMORI Katsuaki ,  SHINTAKU Kengo

IPC分类号： H04L45/00

CPC分类号： H04L41/0816 ,  H04L41/40

摘要： A communication system is a communication system that includes: a plurality of transmission devices; a setting server that receives an instruction to change data related to setting of a data network; and a control server that performs a control process related to the plurality of transmission devices and the data network on a basis of the data. In the communication system, a setting processing unit is provided to perform a process for constructing a customer control network between a first transmission device and the setting server by using a second transmission device as a relay device, when the first transmission device and the second transmission device are connected by an optical transmission line. The first transmission device includes: a connection processing unit that performs a process for constructing a control network between the first transmission device and the control server by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line; and a device control unit that performs a process for constructing the data network for the first transmission device by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line.