Time/phase synchronization distribution over Optical Transport Network(OTN)

Author

Siu, Sammy ; Hsiu-fang Hu ; Wen-Hung Tseng ; Shinn-Yan Lin ; Yi-Liang Lai ; Chia-Shu Liao

Author_Institution

Telecommun. Labs., Chunghwa Telecom Co., Ltd., Taoyuan, Taiwan

fYear

2013

fDate

22-27 Sept. 2013

Firstpage

24

Lastpage

28

Abstract

This paper studies the issues that are relevant to distributing accurate time/phase over Optical Transport Network (OTN). Each node and link can introduce asymmetry, which affects the adequate time/phase accuracy over the networks. In order to achieve better accuracy, it is necessary to correct time through the various network nodes. Both boundary clock mode and novel hybrid clock mode are proposed for supporting IEEE1588v2. In the case of OTN, the asymmetry due to the use of different wavelengths in the two directions is taken into account. The theoretical framework for the analysis of link delay asymmetry and also its compensation are provided.

Keywords

optical fibre networks; optical links; synchronisation; IEEE1588v2; OTN; boundary clock mode; hybrid clock mode; link delay asymmetry; network node; optical transport network; time-phase synchronization distribution; Clocks; Delays; Optical fiber cables; Optical fiber dispersion; Optical fiber networks; Optical fibers; Synchronization; IEEE1588; boundary clock; optical transport network; time/phase synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Clock Synchronization for Measurement Control and Communication (ISPCS), 2013 International IEEE Symposium on

Conference_Location

Lemgo

ISSN

1949-0305

Print_ISBN

978-1-4799-0241-5

Type

conf

DOI

10.1109/ISPCS.2013.6644758

Filename

6644758