| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the efficiency of resource reservation from being reduced when the band of a node is not vacant for a long time by searching a deputy flow to be temporarily used by utilizing the time when the node is occupied, and starting transferring data while using the deputy flow. SOLUTION: This system has a transmission means 10 for transmitting data, a reception means 11 for receiving data transmitted from the transmission means 10 and plural nodes 12, 13, 15, 16, 17, 18, 19 and 20 installed between the transmission means 10 and the reception means 11 and mutually connected. The plural nodes can construct plural flows from the transmission means 10 to the reception means 11 and uses the shortest flow from the transmission means 10 to the reception means as an ordinary flow among the plural flows. When any fault occurs at and node composing of the ordinary flow, any one of remaining flows is used as a substitutive flow detouring the node where the fault occurs.</p> |
