Patent ID: 8559430

Claim:
A network connection device, comprising: a processor for executing a management program for performing a process of learning a specified address; and a switch configured to output a packet received from a primary port out of plural ports to a secondary port, manage a table capable of storing an entry, the entry including a specific address of a specific device connected to a specific port out of the plural ports, status data indicating whether the specific address has been learned, and an identifier of the specific port, generate a first entry of the table in the absence of a first address in the table, the first address being included as a source address in a first packet received from a first port, the first entry including the first address, first status data indicating that the processor is learning the first address, and a first identifier of the first port, request the processor to learn the first address in the absence of the first address in the table, withhold requesting the processor to learn a second address upon receiving a second packet from the first port, the second packet including the second address as a source address, the second address being included, along with second status data indicating that the processor is learning the second address, in a second entry of the table, and update the first status data to indicate that the processor has learned the first address, in response to a request from the processor.