Path selection method, information processor, network system, and path selection program

摘要

A path selection method, an information processor, a network system, and a path selection program are provided which rapidly determine a path that has no loop when determining the path by using a control server to probabilistically select a pass node. A network having a plurality of paths from a source to a destination is controlled. A node forming the path is selected on the basis of a node-to-node transfer probability, and in the case where the selected node is a node that has already been passed through on the path, the transfer probability is reset such that the selection of the node is suppressed.

主权项

1. A method, implemented by a processor, comprising:
determining a route for transferring an incoming packet in response to an inquiry sent from at least one of a plurality of nodes; selecting a node forming the paths, on the basis of a node-to-node transfer probability which is defined for each combination of a destination node and a next hop node candidate; and resetting the node-to-node transfer probability of the selected node such that the selection of the selected node is suppressed, in the case where the selected node comprises a node that has already been passed through on the path, wherein the selecting of the node is performed on a node-to-node basis where a resetting of the node-to-node probability is capable of being performed before a loop occurrence, and wherein the node-to-node transfer probability comprises a probability of a packet being transferred to a neighboring node.