Method, equipment and system for synchronizing Ethernet clock tracking

A clock tracking and clock technology, applied in the communication field, can solve problems such as low efficiency, heavy manual design and configuration workload, etc., and achieve the effect of improving efficiency, reducing manual configuration workload, and avoiding configuration work

Active Publication Date: 2011-07-20
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the above-mentioned clock synchronization, the inventor found that in the prior art, synchronous Ethernet clock tracking requires manual configuration of the clock tracking relationship between nodes, and the manual design and configuration requires a large workload and low efficiency

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  • Method, equipment and system for synchronizing Ethernet clock tracking
  • Method, equipment and system for synchronizing Ethernet clock tracking
  • Method, equipment and system for synchronizing Ethernet clock tracking

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The method for synchronous Ethernet clock tracking provided by the embodiment of the present invention, such as figure 1 As shown, the method steps include:

[0029] S101, the network node obtains at least one extended synchronization status message (Synchronization Status Message, SSM) corresponding to at least one clock source from at least one message source node, and the extended synchronization status message includes the clock quality level of the...

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Abstract

The embodiment of the invention provides a method, equipment and system for synchronizing Ethernet clock tracking, which relate to the field of communications and can realize synchronization of automatic tracking of an Ethernet clock to lower the workload of manual configuration. According to the scheme of the invention, the method comprises the following steps of: acquiring at least one extension synchronization status message corresponding to at least one clock source from at least one message source node by using a network node, wherein the extension synchronization status message comprises the clock quality grade of a clock source and the hop between the network node and the clock source; determining an expansion synchronization status message corresponding to a usable clock source from the at least one expansion synchronization status message according to a preset rule, wherein the preset rule is as follows: selecting an expansion synchronization status message corresponding to a clock source which has a high clock quality grade and is small hop away from the network node; and selecting a message source node of the determined expansion synchronization status message for clock tracking. The embodiment of the invention is applied to synchronization of Ethernet clock tracking.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, device and system for synchronous Ethernet clock tracking. Background technique [0002] In modern communication networks, the normal operation of most telecommunication services requires that the frequency or time difference between devices on the entire network be kept within a reasonable error level, that is, there is a requirement for network clock synchronization. The traditional SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) network is a typical synchronous network, which has been mature and widely used. The trend of future network and service development is all IP (Internet Protocol, Internet Protocol), and the bearer network is gradually changing from TDM (Time Division Multiplexing, Time Division Multiplexing) transmission network to PTN (Packet Transport Network, packet transmission network). However, strict synchronization is not required betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/06
Inventor 孙俊
Owner HUAWEI TECH CO LTD
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