FC network based clock synchronization precision testing device and method

A technology for clock synchronization and accuracy testing, applied in time division multiplexing systems, electrical components, generation/distribution signals, etc., can solve the incompleteness of clock synchronization accuracy testing, complex manual recording and calculation, and inability to calculate clock synchronization accuracy in real time and other problems, to achieve the effect of reliable test results and high test intensity

Active Publication Date: 2016-04-20
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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Problems solved by technology

The calculation of manual records is complex, and the clock synchronization accuracy can

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  • FC network based clock synchronization precision testing device and method
  • FC network based clock synchronization precision testing device and method
  • FC network based clock synchronization precision testing device and method

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[0042] The invention proposes a clock synchronization accuracy test device and method based on an FC switching network. A logic circuit is designed to simulate a clock server and a clock client, which are respectively connected to the FC switch and used to send and receive SYNx, SYNy, and SYNz clock synchronization respectively. Primitives; record the time points and clock synchronization primitive values ​​of SYNx, SYNy, SYNz clock synchronization primitives sent by the clock server; record the time points and clock synchronization primitive values ​​received by each clock client of SYNx, SYNy, SYNz clock synchronization primitives; respectively; Calculate the clock synchronization accuracy of each port to determine whether it meets the requirements.

[0043] The clock synchronization accuracy test device based on FC switching network is as follows: figure 1 shown.

[0044] The clock synchronization accuracy test device is mainly composed of a clock server and several clock ...

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Abstract

The invention relates to the clock synchronization field of communication technologies, and discloses an FC network based clock synchronization precision testing device and method. The clock synchronization precision testing device comprises a clock server; and multiple clock clients respectively connected with an FC switch and respectively used for sending and receiving SYNx, SYNy and SYNz clock synchronization primitives. The FC network based clock synchronization precision testing method comprises the steps of recording time points when the clock server sends the SYNx, SYNy and SYNz clock synchronization primitives and clock synchronization primitive values; recording time points when each clock client receives the SYNx, SYNy and SYNz clock synchronization primitives and the clock synchronization primitive values; and calculating clock synchronization precision of each port and judging whether the clock synchronization precision is satisfied with a requirement. According to the FC network based clock synchronization precision testing device and method, the clock synchronization precision of the FC switch can be tested in real time without manual intervention, the testing intensity is high, and the testing result is reliable; and hardware logic is liable to realize, and a nanosecond-level precision test for clock synchronization of an FC switching network can be carried out.

Description

technical field [0001] The invention relates to the field of clock synchronization in communication systems, in particular to a clock synchronization accuracy test device and method based on FC network. Background technique [0002] The FC switching network has the characteristics of high bandwidth, low delay and high reliability, and is very suitable for use in distributed real-time systems that have high requirements for real-time data transmission. [0003] The FC switching network is composed of FC node machines and FC switches. All FC node machines are connected to FC switches through FC links for distributed real-time communication. In order to realize the clock synchronization of the FC switching network, one FC node machine is usually selected as the clock synchronization server, the other FC node machines are used as the clock synchronization clients, and the FC switch is used as the clock synchronization device. The FC node machine as the clock server regularly se...

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Application Information

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IPC IPC(8): H04J3/06G06F1/14
CPCG06F1/14H04J3/0697
Inventor 李玉发王红春李大鹏张利洲李亚各雷红
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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