Patent ID: 7788721
Filing Date: 2010-08-31
Classification: H04L

Abstract:
1. A manager server connecting to a plurality of packet forwarding apparatuses each of which includes a plurality of ports, the manager server comprising: a topology information storage unit for storing connective relation information among the ports of the packet forwarding apparatuses, via which the packet forwarding apparatuses are connected with each other; and a processor unit provided with a flow information receiving section for receiving, from each of the packet forwarding apparatuses, flow information identifying traffic flow and input port information indicating an input port via which the flow is input to the packet forwarding apparatuses; and a flow starting point searching section for searching for a starting point of a traffic flow according to the input port information and the flow information received by the flow information receiving section and the connective relation information of the ports stored in the topology information storage, wherein the flow starting point searching section searches the connective relation information for a first port matching first input port information corresponding to first flow information received from a first packet forwarding apparatus by the flow information receiving section and searches the connective relation information for a second port matching second input port information corresponding to first flow information received, by the flow information receiving section, from a second packet forwarding apparatus as a connection destination of the first port.