Frame transfer apparatus, link metric determination method, and path determination method

摘要

PROBLEM TO BE SOLVED: To obtain a frame transfer device capable of delivering a link metric so that a path, suppressing the frequency of the frame requiring low delay transfer to compete, is determined.SOLUTION: In a frame transfer device, an adjacent node information collection unit 29 collects adjacent node information from each adjacent node, an adjacent node information advertisement unit 24 advertises the adjacent node information collected by the adjacent node information collection unit 29 in mesh network. Determination means, i.e., an Express traffic path determination unit 33 and a link metric determination unit 32, determines a first link metric for use when a frame requiring low delay transfer is transmitted or received, and a second link metric for use when a frame not requiring low delay transfer is transmitted or received, on the basis of the adjacent node information collected by the adjacent node information collection unit 29, and the adjacent node information advertised in the mesh network.SELECTED DRAWING: Figure 2