Communication apparatus, communication method, and recording medium

A communication method to be carried out by a communication apparatus to be coupled to a network,

• the communication apparatus comprising:
• a table set group comprising a plurality of table sets each containing a plurality of tables capable of processing one read request and one write request from the network at the same timing, and holding flow-by-flow information in a synchronized manner;
• a latest access holding table for specifying, for each flow, one of the plurality of table sets that is a latest access destination of the each flow;
• and
• an updating unit for updating the table set group and the latest access holding table,
• the communication method comprising executing, by the updating unit:
• processing of selecting, when a reference made to the latest access holding table with respect to a plurality of write requests received simultaneously shows that access destinations of flows indicated by the respective write requests are the same table set, as an access destination, a different table set out of the plurality of table sets for each of the flows indicated by the respective write requests, and executing write processing in each table in one of the plurality of table sets that is the selected access destination;
• and
• processing of updating the latest access holding table so that the access destinations after the write processing are registered as access destinations of the flows indicated by the respective write requests.

A non-transitory processor-readable recording medium having stored thereon a program to be executed by a processor of a communication apparatus to be coupled to a network, the non-transitory recording medium being readable by the processor,

• the communication apparatus comprising:
• a table set group comprising a plurality of table sets each containing a plurality of tables capable of processing one read request and one write request from the network at the same timing, and holding flow-by-flow information in a synchronized manner;
• and
• a latest access holding table for specifying, for each flow, one of the plurality of table sets that is a latest access destination of the each flow,
• the program causing the processor to execute:
• processing of selecting, when a reference made to the latest access holding table with respect to a plurality of write requests received simultaneously from the network shows that access destinations of flows indicated by the respective write requests are the same table set, as an access destination, a different table set out of the plurality of table sets for each of the flows indicated by the respective write requests, and executing write processing in each table in one of the plurality of table sets that is the selected access destination;
• and
• processing of updating the latest access holding table so that the access destinations after the write processing are registered as access destinations of the flows indicated by the respective write requests.