Abstract: Provided is a server including: a communication unit that transmits a request to each one of a plurality of remote devices to be remotely monitored and receives a response to the request from each remote device; a timing analysis unit that calculates, on the basis of reception times corresponding to a plurality of the responses obtained from the plurality of remote devices, an adjustment time for each remote device for aligning response reception timings of own devices; and a control unit that controls a response transmission timing of each remote device on the basis of the calculated adjustment time for each remote device.

Abstract: An aspect of the present invention includes: an authentication step of authenticating an optical terminal; a scheme setting step of setting a communication scheme to be used between the terminal and a connection destination terminal to which the terminal is connected; a wavelength setting step of setting a wavelength to be used between the terminal and the connection destination terminal; and a path setting step of setting an optical path to be used between the terminal and the connection destination terminal.

Abstract: An aspect of the present invention is a control system required for optical communication, the control system including: a control unit that performs communication with a plurality of terminal devices using an optical signal, a control transceiver that performs conversion between an optical signal and an electrical signal, and a control optical switch that switches a connection destination of the control transceiver, in which the control unit switches the connection destination of the control transceiver by controlling an operation of the control optical switch, and the number of control optical switches is smaller than the number of terminal devices.

Abstract: A communication system that includes a plurality of cloud resources, and a plurality of communication devices provided on a path for using any one of the plurality of cloud resources, the communication system including: a cloud controller that collects cloud information regarding the plurality of cloud resources from each of the plurality of cloud resources and performs setting change of the plurality of cloud resources; a network controller that collects NW information regarding the plurality of communication devices and a network formed by the plurality of communication devices from each of the plurality of communication devices and gives an instruction for path switching in the plurality of communication devices; and an integrated controller that collects the cloud information from the cloud controller, collects the NW information from the network controller, and gives at least one of an instruction for setting change of the cloud resources to the cloud controller or an instruction for path switching to th

Abstract: A periodic flow detection device include a packet classification unit configured to classify packets into a plurality of flows on the basis of information included in acquired packets; a flow evaluation unit configured to evaluate a possibility that each of the plurality of flows is periodically transmitted on the basis of time at which the packets are acquired; and a flow detection unit configured to detect, from the plurality of flows, a periodic flow that is a flow to which packets periodically acquired belongs on the basis of a result of the evaluation.

Abstract: A server includes a collection unit configured to collect a response to a signal transmitted to each of a plurality of remote devices to be remotely monitored; and a comparison and determination unit configured to perform comparison and determination using a plurality of responses obtained from the plurality of remote devices at a timing when the responses have been obtained from all of the plurality of remote devices.

Abstract: A communication system that includes a plurality of cloud resources, and a plurality of communication devices provided on a path for using any one of the plurality of cloud resources, the communication system including: a cloud controller that collects cloud information regarding the plurality of cloud resources from each of the plurality of cloud resources and performs setting change of the plurality of cloud resources; a network controller that collects NW information regarding the plurality of communication devices and a network formed by the plurality of communication devices from each of the plurality of communication devices and gives an instruction for path switching in the plurality of communication devices; and an integrated controller that collects the cloud information from the cloud controller, collects the NW information from the network controller, and gives at least one of an instruction for setting change of the cloud resources to the cloud controller or an instruction for path switching to th

Abstract: Provided is a communication system in which a plurality of networks each having a detour within an end-to-end distance are formed, the communication system including: a plurality of section control units that perform path control for each of sections with a network having a detour, the sections being obtained by partitioning the communication system; and an integrated control unit that controls the plurality of section control units, in which the integrated control unit includes an optimization unit that determines an optimal guaranteed delay time for each section to satisfy an end-to-end guaranteed delay time provided by a service, and a notification unit that notifies the plurality of section control units of the optimal guaranteed delay time for each section determined by the optimization unit, and the plurality of section control units each include a switching destination instruction unit that instructs a switching destination to switch to a path satisfying the optimal guaranteed delay time notified from

Abstract: A control device including a collection unit that acquires, at a predetermined cycle, cooperation information, which is information indicating a communication state between a communication system that includes a wireless station including an antenna and an allocation device that allocates a wavelength, and a terminal to be communicated, an analysis unit that analyzes the communication state in the communication system on the basis of the cooperation information, and an allocation control unit that controls execution of wavelength allocation by the allocation device on the basis of an analysis result of the analysis unit.

Abstract: Delay measurement can be performed by a dedicated circuit without use of software. A delay measurement device includes a general-purpose processor, and a delay measurement circuit that operates according to a pre-installed circuit without use of a program. An opposing terminal communicates with the delay measurement device. The delay measurement circuit includes a measurement packet generation unit, a response packet reception unit, and a delay time calculation unit that are pre-installed. The measurement packet generation unit generates a measurement packet, transmits the measurement packet to the opposing terminal, and stores the transmission time of the measurement packet. The response packet reception unit receives a response packet from the opposing terminal. The delay time calculation unit calculates a reciprocation delay time by subtracting the transmission time from the reception time. The opposing terminal transmits the response packet when receiving the measurement packet.

Abstract: A periodic flow detection device include a packet classification unit configured to classify packets into a plurality of flows on the basis of information included in acquired packets; a flow evaluation unit configured to evaluate a possibility that each of the plurality of flows is periodically transmitted on the basis of time at which the packets are acquired; and a flow detection unit configured to detect, from the plurality of flows, a periodic flow that is a flow to which packets periodically acquired belongs on the basis of a result of the evaluation.

Abstract: An optical communication device connected to an optical path in an optical communication network includes a controller. The controller generates an additional information signal having a carrier frequency different from a carrier frequency of a main optical signal. The controller generates an output optical signal by superimposing the additional information signal on the main optical signal, and outputs the output optical signal to the optical path. The additional information signal includes a time stamp reflecting a timing at which the additional information signal is generated.