Transmitted clock implementing apparatus and method

Abstract

The invention discloses a realizing device of a penetration clock, and a method thereof. The device is composed of a clock module, a data identification module and a data modification module, wherein the data identification module and the data modification module are respectively connected with the clock module which is used for providing clock information for the data identification module and the data modification module; the data identification module is used for receiving data and obtaining current time information from the clock module; the data modification module is connected with the data identification module, and is used for adding the positive value or the negative value of the current time information with time information carried in data according to the output direction of the data and outputting the added time information and the data. Because of the invention, time information of the data residing in an exchange node is obtained by a hardware device, and the time information is modified according to the residency time information. The invention can effectively realize the penetration clock of the data, and has the advantages that the information accuracy of the obtained residency time information is high, and the obtaining form is stable.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device and method for implementing a transparent transmission clock. Background technique [0002] At present, network technology has been developed. Among them, Ethernet technology has gradually been widely used in many fields due to its openness, wide application and low price, such as the communication field of commercial computers and the field of process control. Information management and communication at the middle and upper levels. [0003] In distributed Ethernet, clock synchronization technology is one of the key technologies in Ethernet technology, and the clock synchronization problem directly affects the real-time performance of network communication. The IEEE1588 standard is a clock synchronization solution in Ethernet, and its basic function is to keep other clocks in the distributed network synchronized with the most accurate clock. The IEEE1588 standard defi...

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Problems solved by technology

[0007] Considering the problems of insufficient precision, instability and large fluctuations in the transparent transmission of the 1588 protocol data clock in the related art, the present invention is made. Therefore, the main purpose of the present invention is to provide an improved implementation of the transparent clock , to solve one of the above-mentioned problems in related technologies

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