COMMUNICATION PATH VERIFICATION SYSTEM, PATH VERIFICATION DEVICE, COMMUNICATION PATH VERIFICATION METHOD, AND PATH VERIFICATION PROGRAM

摘要

Special-packet detecting section in a node detects, from among received packets, a special packet which includes a path verification flag indicative of whether the packet is a packet for path verification or not and of which a header configuration is the same as that of a target flow to be verified. Detection-information notifying section in the node generates, based on the special packet thus detected, detection information, which is information including a flow identifier, which is information for identifying the flow, and a node identifier, which is information for identifying the node itself, and then notifies a path verification device of the detection information. Path verification section in the path verification device verifies a path of the flow based on the node identifier included in the detection information received from the node.