Communication processing apparatus and address learning method

A communication processing apparatus comprising:

• a first storage unit to store, for each of a plurality of port identifiers, a port identifier and a network identifier in association with each other, the port identifier identifying a port among a plurality of ports and the network identifier identifying a network connected to the port;
• a second storage unit to store address information and a set of port identifiers in association with each other, the address information identifying an apparatus connected to the port and the set of port identifiers including the port identifier identifying the port;
• a third storage unit to store, for each of the plurality of port identifiers, a port identifier a port included in a partition and a partition identifier in association with each other, the partition being a part of the plurality of ports, the partition identifier identifying the partition, and
• a processor to
• extract, upon receiving data via a reception port among the plurality of ports, a first partition identifier associated with a first port identifier identifying the reception port from the third storage unit,
• extract second port identifiers associated with the extracted first partition identifier from the third storage unit, the second port identifiers being different from the first port identifier,
• extract first network identifiers associated with any of the extracted second port identifiers from the first storage unit,
• extract third port identifiers associated with any of the extracted first network identifiers from the first storage unit, the third port identifiers stored in the third storage unit in association with second partition identifiers, the second partition identifiers being different from the first partition identifier, and
• store source address information of the received data and a first set of port identifiers in association with each other in the second storage unit, the source address information being address information of an apparatus that has transmitted the received data, the first set of port identifiers including the first port identifier and the extracted third port identifiers.

A computer readable, non-transitory medium storing an address learning program that causes a computer to execute an address learning process comprising:

• extracting, upon receiving data via a reception port among a plurality of ports, a first network identifier associated with a first port identifier identifying the reception port from a first storage unit, the first storage unit storing a port identifier identifying a port among the plurality of ports and a network identifier identifying a network connected to the port in association with each other for the plurality of ports;
• extracting second port identifiers associated with the extracted first network identifier from the first storage unit, the second port identifiers being different from the first port identifier;
• storing source address information of the received data and a first set of port identifiers in association with each other in a second storage unit, the source address information being address information of an apparatus that has transmitted the received data, the first set of port identifiers including the first port identifier and the extracted second port identifiers;
• extracting a first partition identifier associated with the first port identifier from a third storage unit, the third storage unit storing a port identifier identifying a port in a partition and a partition identifier in association with each other, the partition being a part of the plurality of ports and the partition identifier identifying the partition;
• extracting third port identifiers associated with the extracted first partition identifier from the third storage unit, the third port identifiers being different from the first port identifier;
• extracting second network identifiers associated with any of the extracted third port identifiers from the first storage unit;
• and
• extracting fourth port identifiers associated with any of the extracted second network identifiers from the first storage unit, the fourth port identifiers stored in the third storage unit in association with second partition identifiers, the second partition identifiers being different from the first partition identifier,
• wherein the first set of port identifiers includes the extracted fourth port identifiers.

A computer readable, non-transitory medium storing an address learning program that causes a computer to execute an address learning method comprising:

• extracting, upon receiving data via a reception port among a plurality of ports, a first partition identifier associated with a first port identifier identifying the reception port from a first storage unit, the first storage unit storing a port identifier identifying a port included in a partition and a partition identifier identifying the partition in association with each other, the partition being a part of the plurality of ports;
• extracting second port identifiers associated with the extracted first partition identifier from the first storage unit, the second port identifiers being different from the first port identifier;
• extracting first network identifiers associated with any of the extracted second port identifiers from a second storage unit, the second storage unit storing a port identifier identifying one port among the plurality of ports and a network identifier identifying a network connected to the one port in association with each other for each of the plurality of ports;
• extracting third port identifiers associated with any of the extracted first network identifiers from the second storage unit, the third port identifiers being stored in the first storage unit in association with second partition identifiers, the second partition identifiers being different from the first partition identifier;
• and
• storing source address information of the received data and a first set of port identifiers in association with each other in a third storage unit, the source address information being address information of an apparatus that has transmitted the received data, and
• wherein the first set of port identifiers including the first port identifier and the extracted third port identifiers.

An address learning method executed by a communication processing apparatus, the address learning method comprising:

• extracting, upon receiving data via a reception port among a plurality of ports, a first partition identifier associated with a first port identifier identifying the reception port from a first storage unit, the first storage unit storing a port identifier identifying a port included in a partition in association with a partition identifier identifying the partition in association, the partition being a part of the plurality of ports;
• extracting second port identifiers associated with the extracted first partition identifier from the first storage unit, the second port identifiers being different from the first port identifier;
• extracting first network identifiers associated with any of the extracted second port identifiers from a second storage unit, the second storage unit storing a port identifier identifying one port among the plurality of ports in association with a network identifier identifying a network connected to the one port for each of the plurality of ports;
• extracting third port identifiers associated with any of the extracted first network identifiers from the second storage unit, the third port identifiers being stored in the first storage unit in association with second partition identifiers, the second partition identifiers being different from the first partition identifier;
• and
• storing, by the communication processing apparatus, source address information of the received data and a first set of port identifiers in association with each other in a third storage unit, the source address information being address information of an apparatus that has transmitted the received data, and
• wherein the first set of port identifiers including the first port identifier and the extracted third port identifiers.