Nippon Telegraph and Telephone Corporation

Aiko Oi

Yuji Soejima

Motomu Nakajima

Yuichi Suto

Atsushi Takada

Masataka Sato

Kimihiko Fukami

Shingo Horiuchi

Kosuke Sakata

In asynchronous processing, processing of a low-order system is checked. A high-order systemincludes a high-order workflow advancing unitthat transmits a processing command for asynchronous processing to a low-order system, and a notice processing unitthat receives, from the low-order system, a notice related to a device command to be executed by a devicein the asynchronous processing, and updates progress data. The low-order systemincludes a low-order workflow advancing unitthat, upon receiving the processing command from the high-order system, transmits a device command to the device, and a notification unitthat, when transmission of the device command to the deviceis detected, notifies the high-order systemof the identifier of the device to which the device command was transmitted and the device command.

Processing system, processing method, higher-level system, lower-level system, higher-level program, and lower-level program

An automatic coordination apparatusincludes: a scenario creation unitthat creates a scenario; a scenario coordination unitthat coordinates a plurality of the scenarios; and a scenario management and execution unitthat manages and executes the scenario, wherein a failure handling business operation is broken down into common and individual tasks, a parent scenario or a child scenario is defined for each of the separated tasks or each task group made by combining a plurality of tasks, the scenario is divided, management across a plurality of the scenarios is performed based on a relationship between each scenario and a status of execution of each scenario, and the scenario is discontinued or changed depending on a process and a content of failure handling.

Automatic cooperation apparatus, automatic cooperation method and automatic cooperation program

A service chain accommodation device includes an influence coefficient calculation unit that calculates an influence coefficient indicating that an influence at the time of processing failure of a service chain is greater for a VNF located in a subsequent stage of a service chain and a VNF shared among a plurality of service chains, a residual resource calculation unit that corrects an amount of residual resources that can be accommodated for each of the VNFs through which the service chain passes, and an accommodation design unit that assigns a new service chain on the basis of the amount of the residual resources.

Service chain accomodation apparatus and service chain accommodation method

An operation apparatus for outputting a request to a management apparatus which manages a Network Service (NS) constructed on a NetWork (NW) including a core NW serving as a virtualization area and an access NW serving as a non-virtualization area including: a storage unit configured to store new configuration information obtained by updating NW configuration information indicating an NW configuration including devices disposed on the NW due to a fault of the NS, a catalog which is a template of the NS, a record describing a lifecycle of the NS, and an order for requesting the management apparatus to control the NS; an optimal configuration determination unit configured to determine an optimal configuration of the NS based on the new configuration information, the catalog, the record, and the order; and an order generation unit configured to generate a change order for changing an NS configuration of the NS to the optimal configuration determined by the optimal configuration determination unit.

Operation device and operation method

A management apparatus is configured to manage a network service (NS) constructed on a network (NW) including a core NW configured to serve as a virtualization area and an access NW configured to serve as a non-virtualization area includes an E2EO configured to control the NS, an SVRO configured to control server-type apparatuses located on the NW, and a NWRO configured to control NW-type apparatuses located on the NW. The E2EO includes a single data center (DC) determination unit configured to determine whether a group of apparatuses used for providing the NS is located in a single DC. The group of apparatuses is designated by an order acquired from an upper level apparatus U. Among the NW-type apparatuses, ToRs located in the DC are controlled by the SVRO, instead of by the NWRO, when it is determined that the group of apparatuses is located in the single DC.

Management device and management method

[Problem] A network service selection apparatus is provided that is able to suitably realize dynamic switching of a network service with a simple method. [Solution] A network service selection apparatusis provided that includes a network service switching unitconfigured to, based on a specification of a network service stored and a service request from a user terminal apparatus, extract a combination of the network services of an initial operation and a spare network service and to connect two service providing systems corresponding to the combination of the network services of the initial operation, and a network service state confirmation unitconfigured to confirm a state of a network service between the two service providing systems

Network service selection device and network service selection method

Implementations are directed to designing a redundant configuration for a virtualized network function with cost efficiency while improving reliability of entire service chain. A service chain design apparatus includes a redundancy target VNF determining unit that defines, as importance of each VNF, at least one of the number of service chains using the VNF or the number of accommodated users in the service chains using the VNF, and determines a VNF having high importance as a redundancy target VNF, and a redundancy determining unit that determines, when importance of the redundancy target VNF determined by the redundancy target VNF determining unit exceeds a predetermined threshold, the redundancy target VNF having the importance exceeding the predetermined threshold as a redundancy execution VNF.

Growing community of inventors

Tokyo, Japan

Aiko Oi