Data distribution management device and data distribution management method

Abstract

A data distribution management device ( 10 ) is provided on a transmission route between a transmission device (C 1 ) that requires a delivery acknowledgement corresponding to data transmitted and a receiving device (C 2 ) in which a transmission delay in a circuit ( 2 ) is smaller than a transmission delay in a circuit ( 3 ), and comprises a transfer unit that transfers the data from the transmission device (C 1 ) to the receiving device (C 2 ), a returning unit that prepares a delivery acknowledgement corresponding to the data transferred and send the delivery acknowledgement to the transmission device. The data distribution management device ( 10 ) also comprises a SG distribution control section ( 16 ) that decides whether the data transmitted by the transmission device (C 1 ) is a protocol dependent on transmission delays and that orchestrates the returning unit to prepare a delivery acknowledgement and send the delivery acknowledgement when it is decided that the data is the delay dependent protocol.

1 . A data distribution management device provided on a transmission route between first and second terminal devices, the first terminal device performing communication with the second terminal device, the data distribution management device comprising:
 a transfer unit which orchestrates the first terminal device to transfer data to the second terminal device;   a returning unit which prepares a delivery acknowledgement corresponding to the data transferred from the first terminal device and sends the delivery acknowledgement to the first terminal device;   a decision unit which decides whether the data transferred from the first terminal device to the second terminal device is a protocol that depends on transmission delays; and   a management control unit which, when the decision unit decides that the data is the protocol that depends on transmission delays, orchestrates the returning unit to prepare the delivery acknowledgement and send the delivery acknowledgement to the first terminal device.   
   
   
       2 . A data distribution management device provided on a transmission route between first and second terminal devices, the first terminal device performing communication with the second terminal device, the data distribution management device comprising:
 a transfer unit which orchestrates the first terminal device to transfer data to the second terminal device;   a returning unit which prepares a delivery acknowledgement corresponding to the data transferred from the first terminal device and sends the delivery acknowledgement to the first terminal device; and   a decision unit that decides whether the delivery acknowledgement is to be prepared and sent by the returning unit, relative to the individual data segments, based on window information of the data segments; and   a return processing execution unit that orchestrates the returning unit to execute the return processing decided by the decision unit.   
   
   
       3 . A data distribution management method employed on a transmission route between first and second terminal devices, the first terminal device performing communication with the second terminal device, the data distribution management method comprising:
 a transmission step of orchestrating the first terminal device to transmit data to the second terminal device;   a returning step of preparing a delivery acknowledgement corresponding to the data transferred from the first terminal device and sending the delivery acknowledgement to the first terminal device;   a decision step of deciding whether the data transferred from the first terminal device to the second terminal device is a protocol that depends on transmission delays; and   a management control step of, when it is decided at the decision step that the data is the protocol that depends on transmission delays, providing a control to execute the returning step.