公开(公告)号：US20190213334A1

公开(公告)日：2019-07-11

申请号：US16332777

申请日：2017-09-13

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takeshi SAKAMOTO ,  Kenji KAWAI ,  Junichi KATO ,  Kazuhiko TERADA ,  Hiroyuki UZAWA ,  Nobuyuki TANAKA ,  Tomoaki KAWAMURA

IPC: G06F21/60 ,  H04B10/27 ,  H04B10/11

CPC classification number: G06F21/602 ,  H04B10/11 ,  H04B10/27 ,  H04L12/44

Abstract: An OLT (10) is provided with a priority control bypass circuit (16) and an encryption/decryption bypass circuit (17), or an ONU (20) is provided with a priority control bypass circuit (26) and an encryption/decryption bypass circuit (27), and one or both of encryption/decryption processing and priority control processing are bypassed in accordance with a priority control bypass instruction (BP) and an encryption/decryption bypass instruction (BE), which are set in advance. This reduces a processing delay that occurs in the OLT or the ONU.