Patent ID: 7944913
Filing Date: 2011-05-17
Classification: H04L,Y02D

Abstract:
1. A node that is connected to other nodes by a plurality of links, the node comprising: a first virtual port storage unit that stores a correspondence between a virtual port, which is a group of a plurality of physical ports connected to the links between the nodes, and the physical ports belonging to the virtual port; a second virtual port storage unit that stores a correspondence between a host virtual port, which is a group of a plurality of virtual ports, and the plurality of virtual ports belonging to the host virtual port; and a frame destination determining unit that determines a physical port of the node for transmitting a received frame, wherein the frame destination determining unit includes: a port specifying unit that specifies physical ports that do not belong to any virtual port, or the virtual port, which is a group of a plurality of physical ports, referring to the first virtual port storage unit and the second virtual port storage unit in correspondence with a destination of the received frame; a physical port specifying unit that specifies the physical ports connected to the link which is not out of order, among the physical ports belonging to the virtual port, when the port specifying unit specifies the virtual port; and a physical port determining unit that determines one of the physical ports specified by the physical port specifying unit as the port for transmitting the frame.