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1. (WO2018015983) COMMUNICATION APPARAUS, SYSTEM, ROLLBACK METHOD, AND PROGRAM

Pub. No.:    WO/2018/015983    International Application No.:    PCT/JP2016/003416
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Fri Jul 22 01:59:59 CEST 2016
IPC: H04L 12/24
Applicants: NEC CORPORATION
Inventors: SASAKI, Takayuki
ASONI, Daniele Enrico
PERRIG, Adrian
Title: COMMUNICATION APPARAUS, SYSTEM, ROLLBACK METHOD, AND PROGRAM
Abstract:
The present invention provides a network with consistent rollback protocol. A communication apparatus comprises a rollback control unit to create a second process to roll back a currently working first process thereto; a storage to store states shared by the first and the second processes, the second process being enable to take over the one or more states stored in the storage unit; a buffer; and a timing control unit that controls of timing of rollback. The rollback control unit starts event buffering to store in the buffer all of one or more events received during when the first process is processing and destined to the first process, and upon completion of the processing of the event by the first process, the rollback control unit performs switching of a working process from the first process to the second process, sends the one or more events stored therein from the start of the event buffering to the second process and stop the event buffering.