To connect to a relay line without the time delay corresponding to consecutive increase in traffic in the dynamic band varying system.
This dynamic band varying device 30 for a transmitter for a transmission control protocol TCP/internet protocol IP packet with a relay line that conducts dynamic connection, and interrupt is provided with a means 34 that recognizes a current traffic quantity, a means 35 that recognizes a TCP/IP protocol packet for recognizing a size of file transfer protocol FTP transfer data, a means 36 that predicts increase/decrease in the traffic, based on a current traffic, a file transfer protocol FTP data transfer size and statistic information of the traffic, and means 33, 37 that dynamically varies the connection of the relay line 50.
| JPH04267640 | RADIO COMMUNICATION LINE CHANGEOVER METHOD |
| WO/1993/014574 | OPTICAL TRANSMISSION SYSTEM |
| JPH05235914 | SIGNAL CHANGEOVER DEVICE |
ASO IKUO
WADA ISAO
