Transport Control Server, Transport Control System, and Transport Control Method

A transport control system comprising:

• a plurality of nodes through each of which a plurality of traffics pass;
• and
• a transport control server connected to the nodes,
• wherein the nodes transmit bandwidth information during passage of the traffics through each of the nodes to the transport control server;
• wherein the transport control server extracts a bandwidth for the traffic at an entry node and a bandwidth for the traffic at an exit node from the received bandwidth information;
• wherein the traffic first passes through the entry node and last passes through the exit node;
• wherein the transport control server functions based on the extracted bandwidth for the traffic at the entry node and the extracted bandwidth for the traffic at the exit node and calculates a bandwidth that is provided for the traffic and is dropped while the traffic passes through the nodes;
• wherein the transport control server compares the calculated dropped bandwidth for the traffic with a specified first bandwidth and extracts one or more first traffics provided with the calculated dropped bandwidth larger than the first bandwidth;
• wherein the transport control server functions based on the received band information and extracts a second traffic from the extracted first traffic;
• and
• wherein the second traffic has a bandwidth that is dropped at the two or more nodes for the first traffic to pass through and exceeds a specified second bandwidth.

A transport control method for a transport control server connected to a plurality of nodes through which a plurality of traffics pass, the method comprising the steps of:

• allowing the nodes to transmit bandwidth information during passage of the traffics through each of the nodes to the transport control server;
• allowing the transport control server to extract a bandwidth for the traffic at an entry node and a bandwidth for the traffic at an exit node from the received bandwidth information and allowing the traffic to first pass through the entry node and last pass through the exit node;
• allowing the transport control server to function based on the extracted bandwidth for the traffic at the entry node and the extracted bandwidth for the traffic at the exit node and calculate a bandwidth that is provided for the traffic and is dropped while the traffic passes through the nodes;
• allowing the transport control server to compare the calculated dropped bandwidth for the traffic with a specified first bandwidth and extract one or more first traffics provided with the calculated dropped bandwidth larger than the first bandwidth;
• allowing the transport control server to function based on the received band information and extract a second traffic from the extracted first traffic;
• allowing the second traffic to have a bandwidth that is dropped at the two or more nodes for the first traffic to pass through and exceeds a specified second bandwidth;
• and
• allowing the transport control server to use the extracted bandwidth at the exit node for the second traffic and limit a bandwidth at the entry node for the second traffic.