Nippon Telegraph and Telephone Corporation

Toru Okugawa

Hidetaka Nishihara

Shunsuke Homma

Aki Fukuoka

Shinya Arita

A communication control apparatus authenticates a user based on an authentication request transmitted from virtual Customer Premise Equipment (CPE) in response to a request of the user who accesses the virtual network. The communication control apparatus refers to information, held by an operation management system of a service operator, about the user of the virtual network. The communication control apparatus refers to information, collected by a collector, about a network slice constructed in the virtual network. The communication control apparatus selects a network slice through which data flow of the user. The communication control apparatus notifies the virtual CPE of the selected network slice.

Communication control device, communication control system, communication control method, and communication control program

A storage unit () stores a terminal identifier for identifying a terminal, locator information indicating a transfer node to which a terminal is connected, a candidate terminal identifier for identifying a candidate terminal that is a communication destination candidate of the terminal, and candidate locator information indicating a transfer node to which the candidate terminal is connected in association with each other. An acquisition unit () acquires, from a transfer node to which a terminal is newly connected, mapping information in which a locator information indicating the transfer node and a terminal identifier of the terminal are associated and stores the mapping information in the storage unit (). A notification unit () notifies the transfer node to which the terminal is newly connected of the candidate terminal identifier and the candidate locator information stored in association with the terminal identifier that is acquired in the storage unit ().

Notification device and notification method

In a measurement system including a first transfer apparatus provided at a packet receiving edge of one network, a second transfer apparatus provided at a packet sending edge of the one network, and a measurement apparatus configured to receive a packet, the first transfer apparatus adds received time of the packet to the packet and transmits the packet, the second transfer apparatus receives the packet, adds sending time and a signature specific to the one network to the packet, and transmits the packet to which the received time, the sending time, and the signature are added, and the measurement apparatus receives the packet, and calculates a difference between the sending time and the received time to measure latency in the one network.

Measurement system and measurement method

There is provided a communication system for controlling a slice including a plurality of subslices. The system includes a temporary configuration unit configured to temporarily configure, for each subslice, a target value related to a service requirement, a measurement unit configured to acquire, in each subslice, a measurement value related to the service requirement for each QoS class and measure a margin, with respect to the target value, of the measurement value, a sharing unit configured to share the margin among the plurality of subslices, and an adjustment unit configured to smooth the margin among the plurality of subslices while satisfying the service requirement for the slice and configure, for each subslice, the target value and the QoS class corresponding to the margin after smoothing.

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Tokyo, Japan

Toru Okugawa