FIBER OPTIC LINK DETECTION METHOD AND APPARATUS

Title:

FIBER OPTIC LINK DETECTION METHOD AND APPARATUS

Document Type and Number:

WIPO Patent Application WO/2021/120956

Kind Code:

A1

Abstract:

Disclosed is a fiber optic link detection method. The method can be applied in an optical communication network. The optical communication network comprises a first network device and a second network device. A first interface of the first network device communicates with a second interface of the second network device via a first fiber optic link. Both the first network device and the second network device support a PTP. The first network device is a slave device, and the second network device is a master device. When the first interface of the first network device performs time synchronization with the second interface of the second network device using the PTP, if the first fiber optic link comprises a third network device which does not support the PTP, the accuracy of time synchronization is affected. In embodiments of the present application, the first network device can determine whether the first fiber optic link comprises a third network device which does not support the PTP. When it is determined that the first fiber optic link comprises the third network device, a corresponding measure can be further taken to improve the accuracy of time synchronization.

Inventors:

WANG JINHUI (CN)
CHEN CONG (CN)
LV JINGFEI (CN)

Application Number:

PCT/CN2020/129346

Publication Date:

June 24, 2021

Filing Date:

November 17, 2020

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04L29/06; H04J3/06

Domestic Patent References:

WO2019174554A1	2019-09-19
WO2016177240A1	2016-11-10

Foreign References:

CN106453364A	2017-02-22
CN106453364A	2017-02-22
CN102301620A	2011-12-28
CN101277231A	2008-10-01
CN106453364A	2017-02-22
CN202010223212A	2020-03-26
CN201911295173A	2019-12-16

Other References: