Abstract: The present disclosure relates scaling out servers that performs Layer 3 (L3) termination. In particular, the server includes: a packet receiving unit which receives a packet from any load balancer performing L3 termination via an Layer 2 (L2) switch; an assignment unit which, by referencing a MAC/MARK number correspondence table in a storage unit, assigns to the received packet a MARK number that corresponds to a transmission source MAC address; a recording unit which records a MARK number for connection of the received packet in a connection/MARK number correspondence table; and a packet transmission unit which, when a reply packet to the received packet is to be transmitted, routes the reply packet via the L2 switch by acquiring, from a MARK number/GW correspondence table in the storage unit, an IP address of a load balancer corresponding to the MARK number associated with the connection of the received packet.

Abstract: An information processing device (10) is an information processing device in which is implemented a session table, and includes a storage unit (12) that stores a session table, in which is recorded session information having session content and holding time point of the session, a locking unit (133) that locks at least a region of the session table that is an object of processing, during processing on the session information, a searching unit (134) that scans session information of the session table after locking, and searches for session information that is an object of processing, and a deleting unit (135) that, in a case where the session information of which the holding time point has expired is discovered at the time of scanning by the searching unit (134), the session information of which the holding time point has expired is deleted from the session table.

Abstract: An information processing device (20) performs a session timer updating process of restoring the remaining time of a session timer to N seconds whenever a packet is received from a client (10). The information processing device (20) does not perform the session timer updating process even when a packet is received from the client (10) until a session timer update stop time (?) elapses after the session timer was last updated. The information processing device (20) resumes the session timer updating process after the session timer update stop time (?) has elapsed after the session timer was last updated.

Abstract: An information processing device (10) is an information processing device in which is implemented a session table, and includes a storage unit (12) that stores a session table, in which is recorded session information having session content and holding time point of the session, a locking unit (133) that locks at least a region of the session table that is an object of processing, during processing on the session information, a searching unit (134) that scans session information of the session table after locking, and searches for session information that is an object of processing, and a deleting unit (135) that, in a case where the session information of which the holding time point has expired is discovered at the time of scanning by the searching unit (134), the session information of which the holding time point has expired is deleted from the session table.

Abstract: A server (50) includes a packet reception unit (543) that receives a packet from any of load balancers via an L2 switch and performs L3 termination, a giving unit (544) that references a MAC/MARK No. correlation table in a storage unit (53) and gives the reception packet a MARK No. corresponding to a transmission source MAC address, a recording unit (545) that records the MARK No. corresponding to a connection of the reception packet in a connection/MARK No. correlation table, and a packet transmission unit (546) that, in a case of transmitting a reply packet as to the reception packet, acquires an IP address of the load balancer corresponding to the MARK No. corresponding to the connection of the reception packet from a MARK No./GW correlation table in the storage unit (53), and routes the packet via the L2 switch.

Abstract: An information processing device (20) performs a session timer updating process of restoring the remaining time of a session timer to N seconds whenever a packet is received from a client (10). The information processing device (20) does not perform the session timer updating process even when a packet is received from the client (10) until a session timer update stop time (?) elapses after the session timer was last updated. The information processing device (20) resumes the session timer updating process after the session timer update stop time (?) has elapsed after the session timer was last updated.