| 摘要 |
A session relay device which can reliably send a data packet from a source to a destination without the need for reconfiguring and dividing a segment is supplied. Session relay device 110, adapted to be disposed between terminals for transmitting and receiving data as packets to which sequence numbers representative of the order of segments to be transmitted are assigned, includes session relay section 110-3 that relays data transmitted as packets between a first session opened between session relay device 110 and a terminal on a transmission side and a second session opened between session relay device 110 and a terminal on a reception side. Session relay section 110-3 receives the retransmitted segment from a terminal on the transmission side, updates a maximum segment size of the second session with the segment size of the retransmitted segment, and transmits the retransmitted segment to a terminal on the reception side.
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