Abstract: The present invention provides a registration management method capable of suppressing influence of data file forwarding load upon processing, and suitable for application to for example VNF Package on-boarding. A data file required for registration is placed in advance on a side of a management apparatus that performs registration processing, and at a registration stage, a registration request is made to the management apparatus by specifying the data file placed on the management apparatus side.

Abstract: The present invention provides a registration management method capable of suppressing influence of data file forwarding load upon processing, and suitable for application to for example VNF Package on-boarding. A data file required for registration is placed in advance on a side of a management apparatus that performs registration processing, and at a registration stage, a registration request is made to the management apparatus by specifying the data file placed on the management apparatus side.

Abstract: A virtual network function management apparatus includes: a virtual machine monitoring unit that detects a fault(s) in a virtual machine(s) operating on a virtualized infrastructure management unit that manages a virtualized infrastructure; and a control unit that instructs the virtualized infrastructure management unit to recreate a virtual machine(s) in which a fault(s) has occurred after an image file(s) of the virtual machine(s) in which the fault(s) has occurred is logically updated so that the image file(s) of the virtual machine(s) in which the fault(s) has occurred can be backed up.

Abstract: A communication control device 100 initiates a session with a communication device by executing a sequence including a plurality of communication events.

Abstract: A system, which is connectable to a first apparatus capable of data communication using a data communication protocol via a network where each session is managed by a session management protocol, includes: a connecting section which, if ID about the first apparatus exists in a storing section when a start instruction is received from the first apparatus, registers ID about a session corresponding to the start instruction in association with the ID about the first apparatus, and establishes a path enabling data communication for the first apparatus in the network using the session management protocol; and a providing section which, upon receiving the ID about the session from a second apparatus, transmits confirmation information according to the result of confirmation about whether the ID about the first apparatus is in association with the ID about the session.

Abstract: A system, which is connectable to a first apparatus capable of data communication using a data communication protocol via a network where each session is managed by a session management protocol, includes: a connecting section which, if ID about the first apparatus exists in a storing section when a start instruction is received from the first apparatus, registers ID about a session corresponding to the start instruction in association with the ID about the first apparatus, and establishes a path enabling data communication for the first apparatus in the network using the session management protocol; and a providing section which, upon receiving the ID about the session from a second apparatus, transmits confirmation information according to the result of confirmation about whether the ID about the first apparatus is in association with the ID about the session.

Abstract: A presence service system includes at least two presence servers, at least two presence databases storing therein presence information of users, each of the presence databases being associated with any one of the presence servers, and an assignment presence server which, when a request relating to presence service is transmitted to the presence service system from a user terminal, carries out an assignment process in which the request is transmitted to one of the presence servers covering a user designated in the request.

Abstract: A resource list server issues SUBSCRIBE requests for individual resources in a list upon receiving a SUBSCRIBE request for the list. Then, when the resource list server has received first NOTIFY messages that indicate the status of the individual resources from a notifier for the resources, the resource list server sends second NOTIFY messages to a subscriber that has a subscription for the list, which includes the resources.

Abstract: A resource list server issues SUBSCRIBE requests for individual resources in a list upon receiving a SUBSCRIBE request for the list. Then, when the resource list server has received NOTIFY messages that indicate the status of the individual resources from a notifier for the resources, the resource list server sends NOTIFY messages to a subscriber that has a subscription for the list, which includes the resources. When the notifier has received a request for updating an existing subscription, the resource list server sends a NOTIFY message that includes no content to the subscriber.