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1. (WO2018078747) TRANSFER DEVICE AND FRAME TRANSFER METHOD

Pub. No.:    WO/2018/078747    International Application No.:    PCT/JP2016/081756
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 27 01:59:59 CEST 2016
IPC: H04L 12/28
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: INOUE, Ayako
井上 礼子
TANIGUCHI, Sachiko
谷口 幸子
SAKAGAMI, Yusuke
坂上 佑介
KAWATE, Ryusuke
川手 竜介
Title: TRANSFER DEVICE AND FRAME TRANSFER METHOD
Abstract:
The present invention is provided with: an FCS code calculation unit (21) for calculating a first code that is the FCS code of a received frame; an FCS check unit (22) for comparing a second code that is the FCS code stored in the received frame with the first code and outputting a first comparison result that indicates that the two compared codes match or do not match; an inverted FCS check unit (23) for comparing a third code that is the second code each bit of which is inverted with the first code and outputting a second comparison result that indicates that the two compared codes match or do not match; an error determination unit (24) for determining the state of an error in the received frame on the basis of the first comparison result and the second comparison result; and an FCS update unit (42) which, when the second comparison result is a mismatch, updates the second code with a fourth code that is the first code each bit of which is inverted when transferring the received frame to a device at a subsequent stage.