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1. (WO2017157170) METHOD OF UPDATING CLOCK SYNCHRONIZATION TOPOLOGY, METHOD OF DETERMINING CLOCK SYNCHRONIZATION PATH, AND APPARATUS

Pub. No.:    WO/2017/157170    International Application No.:    PCT/CN2017/075252
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: H04L 12/751
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: XU, Jinchun
徐金春
JIANG, Yuanlong
江元龙
ZHU, Hengjun
朱恒军
LIU, Xian
刘娴
Title: METHOD OF UPDATING CLOCK SYNCHRONIZATION TOPOLOGY, METHOD OF DETERMINING CLOCK SYNCHRONIZATION PATH, AND APPARATUS
Abstract:
The application relates to the field of communications, and in particular, to a method of updating a clock synchronization topology, a method of determining a clock synchronization path, and an apparatus. The method comprises: receiving from a first network element a first packet comprising information of a clock synchronization capability of the first network element, wherein the first network element is a network element in a first network and has the capability of synchronizing clocks; and updating, according to the information of the clock synchronization capability of the first network element, a clock synchronization topology of the first network. In addition, the method further comprises: determining, according to a request from the first network element and the clock synchronization topology of the first network, a first clock synchronization path of a clock injected from a clock injection node to the first network element of the first network. The embodiment updates, according to the information of the clock synchronization capability indicating to automatically synchronize according to the network element clock, the clock synchronization topology, determines the clock synchronization path, and reduces costs of clock synchronization path deployment.