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Method and device for sending precision-time synchronous protocol message

A technology of precise time synchronization and protocol messages, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems that network equipment cannot achieve the best transmission effect

Inactive Publication Date: 2012-10-10
北京东土电信技术有限公司
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Problems solved by technology

[0009] In view of this, the embodiments of the present invention provide a method and device for sending and receiving precise clock synchronization protocol messages, so as to solve the problem that the existing network devices cannot The problem of achieving optimal transmission

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  • Method and device for sending precision-time synchronous protocol message

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] In order to solve the problem in the prior art that clock synchronization cannot be realized due to inconsistencies in the transmission protocols of network equipment, the embodiments of the present invention provide a method and device for sending PTP messages, which realize the transmission of PTP messages in support of different transmission protocols. Transmission between network devices improves efficiency and ensures the best transmission effect. .

[0027] The present invention will be described in detail below in conjunction with the acc...

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Abstract

The invention provides a method and a device for sending a precision-time synchronous protocol message. The method comprises the steps as follows: according to the flag information of a port for sending a PTP message to be sent, judging if the flag information of the port is contained in a self-saved mapping list; if the flag information of the port is ensured to be contained in the self-saved mapping list, sending the PTP message to be sent according to a transmission protocol corresponding to the the flag information of the port in the mapping list; and if not, sending the PTP message to be sent according to a self transmission protocol. According to the invention, because the mapping list for corresponding relations of the flag information of the port and the transmission protocol is established, the corresponding transmission protocol can be found according to the flag information of different ports, and the PTP message can be sent according to the found transmission protocol. As a result, the PTP message can be transmitted between network equipment capable of supporting different transmission protocols, thereby improving the efficiency and ensuring the best transmission effect.

Description

[0001] technical field [0002] The present invention relates to the technical field of industrial Ethernet, in particular to a method and device for sending a Precision Time Synchronization Protocol (PTP) message. [0003] Background technique [0004] The high-speed development of Ethernet technology has created conditions for the widespread application of distributed systems in the industrial field. Ethernet has the advantages of low cost, high reliability, fast transmission speed, strong versatility, good openness, and great development potential. However, Ethernet also has defects such as network determinism and weak real-time performance. As the system becomes larger and more complex, and the degree of distribution becomes higher and higher, the requirements for clock synchronization are also gradually increased. The determinism and real-time performance have been improved to a certain extent, but it still cannot meet the requirements of precise timing. [0005] Th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56
Inventor 肖智中马化一
Owner 北京东土电信技术有限公司
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