| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a network system capable of dealing with the scale of a user even when an existent edge switch is used. SOLUTION: This network system is provided with an edge switch 20 for generating plural kinds of label information as a path identifier, plural WAN routers 30 and 30A for inserting the label information corresponding to the destination of relevant data generated by the edge switch 20 to data to be transmitted to the edge switch 20 and sending them out toward the edge switch 20 in order to determine the output route of data while referring to only the label information inserted to the data by the edge switch 20 and a line concentrating device capable of connecting the respective WAN routers 30 and 30A through a communication line for transmitting the data, in which the label information is inserted from the respective WAN routers 30 and 30A, through the communication line to the edge switch 20 when these data are received from the respective WM nodes 30 and 30A.</p> |
