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Synchronization method and system of Ethernet

An Ethernet and synchronous clock technology, applied in the field of Ethernet synchronization methods and systems, can solve the problem of inability to synchronize the Ethernet between the local device and the peer device, and achieve the effect of realizing system clock synchronization

Active Publication Date: 2012-02-08
ZTE CORP
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Problems solved by technology

[0006] Aiming at the problem in the related art that the synchronous Ethernet function of the local device and the peer device cannot be realized through the SFP electrical port module, the present invention provides an Ethernet synchronization method and system

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  • Synchronization method and system of Ethernet
  • Synchronization method and system of Ethernet
  • Synchronization method and system of Ethernet

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] The main purpose of the present invention is to provide an Ethernet synchronization method and system, on the basis of conforming to the size and structure of "INF-8074i Specification for SFP Transceiver", a physical layer PHY supporting synchronous Ethernet is embedded in the SFP electrical port module device. In the receiving part of the Ethernet interface, when the Ethernet interface is in slave mode, the line recovery clock is obtained from the data of the receiving line, and the clock is sent out to the SFP module as the system clock source of the device; in the Ethernet interface In the sending part, the system clock source of this device is used as the sending reference clock sig...

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Abstract

The invention discloses a synchronization method and system of Ethernet. The method comprises the following steps that: an SFP (System File Protection) electric port module in home terminal equipment receives data signals from opposite terminal equipment; a synchronous clock is obtained in the data signals; and the synchronous clock is used as a system clock source of the home terminal equipment in order to realize the function of synchronizing the Ethernet. In the invention, synchronous clock information which is synchronous with the opposite terminal equipment is obtained through the SFP electric port module and is used as the system clock source of the home terminal equipment so that the problem that the function of synchronizing the Ethernet through the SFP electric port module can not be realized by relevant technologies, and system clock synchronization of the home terminal equipment and the opposite terminal equipment is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to an Ethernet synchronization method and system. Background technique [0002] For Time Division Multiplexing (TDM) networks using circuit switching (such as Synchronous Digital Hierarchy (SDH) networks), it is possible to transmit network synchronization timing information, but most packet switching networks , especially the current Ethernet network does not have this function. [0003] Synchronous Ethernet is used to transmit the clock, the Ethernet network of the current asynchronous clock system is transformed, and the idea of ​​synchronous timing transmission of the entire network of the SDH system is introduced into the design of the Ethernet network. Synchronous Ethernet is a traditional physical layer clock synchronization technology. This technology extracts the high-precision clock transmitted by the network from the physical layer data stream, and then tracks and proce...

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Application Information

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IPC IPC(8): H04L7/00
Inventor 陶德明
Owner ZTE CORP
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