Abstract: A wavelength path switching node apparatus is provided that improves the utilization efficiency of wavelength resources by allocating wavelength paths by following traffic variations in packet units. A node apparatus on the wavelength path start point side includes: a packet distributing section that stores input packets in a buffer, fetches the packets from the buffer and distributes to an initial path and additional paths; a control section that allocates the additional paths based on distribution states of the packet units; and an optical switch that switches wavelength paths based on this control. A node apparatus on the wavelength path end point side includes: a monitoring section that monitors packets distributed to the initial path and the additional paths; a control section that allocates the additional paths based on distribution states of the packet units obtained by this monitoring; and an optical switch that switches wavelength paths based on this control.

Abstract: Data of traffic with long-range dependence characteristics is generated by a host terminal and transferred to a memory arranged on a board. The memory stores the traffic data comprising at least one of the number of IP packets output per unit time and total number of bytes, a set value of each parameter of the generated IP packets (i.e., packet length table) and an IP address table. A packet generation section refers to the data in the memory to generate traffic with long-range dependence characteristics at a speed corresponding to a high-speed network. As a result, the behavior of the network at the time of application of the load can be measured before the actual use of the network. According to the present invention, a traffic generation apparatus that can supply the actual network with a load close to the real traffic can be provided.