A relay device includes a first input/output unit (111), a second input/output unit (112), a security monitoring unit (121) that determines whether or not a packet input to the first input/output unit (111) or the second input/output unit (112) is normal, and a relay unit (113) that outputs a packet determined to be normal by the security monitoring unit (121) from the first input/output unit (111) or the second input/output unit (112); the security monitoring unit (121) uses a whitelist to perform whitelist-based attack detection to determine whether or not a packet is normal, and uses a learning model learned through machine learning to perform machine-learning-based attack detection on a packet that is not determined to be normal through the whitelist-based attack detection, to determine whether or not the packet is normal.

A network management apparatus according to an embodiment includes: a storage device configured to store information indicating a correspondence relationship between information objects related to a logical layer, information objects related to a physical layer in a network configuration, and information objects related to a facility layer which are objects in which the information objects related to the physical layer are housed; an acquisition unit configured to acquire an information object related to an occurrence path of a failure in the logical layer of the network configuration, from the storage device; and a search unit configured to search for, among the information objects related to the facility layer stored in the storage device, an information object related to the facility layer and the physical layer associated with the information object related to the occurrence path of the failure acquired from the acquisition unit, as a candidate for a facility that causes the failure.

A VNF operation apparatus (10) is a processing apparatus that relocates data processing functions to another apparatus to continue data processing and includes: a storage unit (12) configured to store information indicating a communication relationship between apparatuses; an estimation unit (132) configured to calculate, based on the information indicating the communication relationship, an estimation value of a transfer delay of data generated during relocation for a plurality of schedulings having different orders of relocation of the data processing functions; a scheduling unit (133) configured to select a scheduling for which the estimation value calculated by the estimation unit (132) is minimized, and sets, based on the selected scheduling, an order of relocation of the data processing functions and a start timing of relocation of the data processing functions; and a relocation unit (134) configured to relocate VNFs to the other apparatus in accordance with the order and the timing set by the scheduling unit.

A location information transmitter transmits location information within a prescribed area. An IoT terminal receives the location information and transmits the location information and a device identifier. An address setting management device receives the location information and the device identifier and sets an IP address to be assigned to the IoT terminal on the basis of the location information and the device identifier and transmits the IP address to the IoT terminal. The IoT terminal sets the IP address received from the address setting management device for itself.

A gateway device includes a first communication system, a second communication system and a network processor. The first communication system and the network processor communicate first network signals therebetween. The first network signals comprising first higher priority network signals and first lower priority network signals. The second communicate system and the network processor communicating second network signals therebetween. The second network signals comprising second higher priority network signals and second lower priority network signals. The network processor communicates a first congestion notification request signal to the first communication system. The first communication system modifies the first lower priority network signals at the first communication system in response to the first congestion notification signal to form first modified network signals and communicates the first modified network signals from the gateway device.

The data collection management device (10) is connected via a network to a plurality of communication devices (20) performing cyclic communication and includes: a network configuration storage (17) to store network configuration information indicating the communication devices participating in the cyclic communication; a data receiving unit (11) to receive communication data multicast from each communication device (20); a received data storage (12) to store the received communication data as collected data; a received data determination unit (13) to determine whether there is missing data in the collected data and identify unreceived communication data, based on information specifying communication cycles included in the collected data, on information specifying sender communication devices included in the collected data, and on network configuration information; and a retransmission requesting unit (15) to transmit a retransmission request of the unreceived communication data to one of the plurality of communication devices (20).

A terminal device (40) includes a control unit (45). The control unit (45) acquires service information about one or more services provided via a base station apparatus (20). The control unit (45) selects at least one service desired to be used, from among one or more services. The control unit (45) transmits a registration request message including the service selected, to a management device (10A) managing mobility of the terminal device (40) via the base station apparatus (20). The control unit (45) receives, for each service included in the registration request message, reference information about an operating environment of the terminal device (40) requested upon using the service.

A communication management apparatus suppresses occurrence of a communication anomaly in a cluster by including: an acquisition unit acquiring quantities of traffic of communications performed by one or more communication units operating in each of a plurality of computers constituting a cluster; a prediction unit predicting future quantities of traffic of the communications; an identification unit calculating, for each of the computers, a total of the future quantities of traffic of the communication units operating in the computer and identifying a first computer for which the total exceeds a threshold; and a move control unit controlling, for a communication unit operating in the first computer, move to a second computer.

A control device (223) according to the present disclosure is a control device connected to a plurality of processing devices (240) and a base station device (260) via a network (20). The control device (223) includes a control unit (2233). The control unit (2233) acquires information regarding processing capabilities of the plurality of processing devices (240). The control unit (2233) selects a processing device (2403) that is to execute at least one function of a core network (225) connected to the base station device (260) from among the plurality of processing devices (240) based on the acquired information regarding the processing capabilities.

A communication control system includes: a state switching support apparatus including a processor; and a communication control apparatus to control communication to a protection target according to its state. The processor executes generating grid point data in which a grid point group representing exhaustive communications to the target is associated with states corresponding to grid points of the grid point group using previously collected data related to the communication; generating, by using the grid point data and data related to current communication, generating a state distribution representing a distribution of the states in a vicinity of a point represented by the data related to current communication in the grid point group; predicting a time when the state transitions to another state from a change in the state distribution from past to present; and transmitting an instruction to switch the state to the communication control apparatus at the predicted time.