JP2009124759A5

JP2009124759A5 -

Info

Publication number: JP2009124759A5
Application number: JP2009055001A
Authority: JP
Filing date: 2009-03-09
Publication date: 2011-12-08
Anticipated expiration: 2027-07-12

Description

本願で開示する代表的な発明は、対向装置から第１通信経路を介してシーケンス番号が付与されたデータを受信する第１のインタフェースと、前記対向装置から第２通信経路を介して前記シーケンス番号が付与されたデータを受信する第２のインタフェースと、前記受信したデータを格納するバッファと、前記第１のインタフェースにおいて、第１シーケンス番号が付与された第１データを受信する前に前記第１シーケンス番号の次のシーケンス番号である第２シーケンス番号が付与された第２データを受信した場合、受信した前記第２データを前記バッファに格納し、前記第２のインタフェースにおいて、前記第１シーケンス番号が付与された前記第１データを受信する前に前記第２シーケンス番号が付与された前記第２データを受信した場合、前記第２データを前記バッファから読み出すバッファ制御部と、前記バッファから読み出された前記第２データを送出する第３のインタフェースと、を備えることを特徴とする。 A representative invention disclosed in the present application includes a first interface that receives data assigned a sequence number from a counter device via a first communication path, and the sequence number from the counter device via a second communication path. Before receiving the first data to which the first sequence number is assigned in the second interface for receiving the data to which the first sequence number is assigned, the buffer for storing the received data, and the first interface. When receiving the second data to which the second sequence number that is the sequence number next to the sequence number is received, the received second data is stored in the buffer, and the first sequence number is stored in the second interface. Received the second data with the second sequence number before receiving the first data with the If, for said second buffer controller for reading data from the buffer, and a third interface for sending the second data read out from the buffer, characterized in that it comprises a.

Claims

A first interface for receiving data assigned a sequence number from the opposite device via the first communication path;
  A second interface for receiving data to which the sequence number is assigned from the opposite device via a second communication path;
  A buffer for storing the received data;
  In the first interface, before receiving the first data assigned the first sequence number, the second data assigned the second sequence number that is the sequence number next to the first sequence number is received. The received second data is stored in the buffer, and the second interface is assigned the second sequence number before receiving the first data assigned the first sequence number in the second interface. A buffer control unit for reading the second data from the buffer when two data are received;
  And a third interface for sending the second data read from the buffer.

The buffer control unit
In the first interface, before receiving the first data assigned the first sequence number, the second data assigned the second sequence number that is the sequence number next to the first sequence number is received. 2. The method according to claim 1, wherein it is determined whether or not a predetermined waiting time has elapsed, and when it is determined that the predetermined waiting time has elapsed, the second data is read from the buffer. Data transfer device.

The data transfer apparatus according to claim 2, wherein the predetermined waiting time is a difference between a data transfer delay time in the first communication path and a data transfer delay time in the second communication path.

When the data transfer device receives the data from the communication paths, the buffer control unit measures a time interval between the received data and the previously received data, and a plurality of the measured time intervals. The average value of
The predetermined waiting time is a value obtained by adding a difference between the data transfer delay time in the first communication path and the data transfer delay time in the second communication path to the average value of the calculated time intervals. The data transfer device according to claim 2, wherein:

When the data transfer device receives the data from the communication paths, the buffer control unit measures a time interval between the received data and the previously received data, and a plurality of the measured time intervals. The maximum value of
The predetermined waiting time is a value obtained by adding a difference between a data transfer delay time in the first communication path and a data transfer delay time in the second communication path to the maximum value of the calculated time interval. The data transfer device according to claim 2, wherein:

Receive data with a sequence number from the opposite device via the first communication path at the first interface,
  The second interface receives the data assigned the sequence number from the opposite device via the second communication path,
  In the first interface, before receiving the first data assigned the first sequence number, the second data assigned the second sequence number that is the sequence number next to the first sequence number is received. The second data received is stored in a buffer, and the second interface is provided with the second sequence number before receiving the first data provided with the first sequence number in the second interface. If data is received, the second data is read from the buffer;
  A data transfer method, wherein the second data read from the buffer is transmitted from a third interface.