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Method and device for measuring clock deviation of network equipment

A technology of network equipment and clock deviation, which is applied in the field of computer communication, can solve problems such as complicated operation, and achieve the effect of simple operation and low cost

Active Publication Date: 2018-09-21
成都源知信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method needs to access the clock server and clock source, which makes the operation complicated, and there is no effective algorithm for calculating clock deviation based on this method

Method used

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  • Method and device for measuring clock deviation of network equipment

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Embodiment Construction

[0047] 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.

[0048] A method for measuring clock deviation of network equipment provided by the present invention, such as figure 1 As shown, the method includes:

[0049] Step S1: Send n data packets with time stamp value to the network device according to the preset time interval Δt; receive n data packet responses with time stamp value sent by the network device, and record the received n data packets with time stamp value Have the time value of the data packet respons...

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Abstract

The invention discloses a method and device for measuring a clock error of a network device. The method comprises the following steps: sending n data packets with timestamps to the network device according to a preset time interval; receiving n data packet responses carrying timestamp values sent by the network device, and sequentially recording the time values of the n data packet responses carrying timestamp values to obtain a first time value sequence; sequentially processing the timestamp values of the n data packet responses carrying the timestamp values to obtain a second time value sequence; and processing the first time value sequence and the second time value sequence to obtain the clock error of the network device.

Description

technical field [0001] The invention relates to the field of computer communication, in particular to a method for measuring clock deviation of network equipment and a measuring device. Background technique [0002] The clock pulse used for timing in electronic equipment (such as: quartz crystal resonator) has its only constant crystal oscillator frequency, and the difference between the crystal oscillator frequency and the rated frequency of the clock pulse is called the precision deviation of the clock pulse. Therefore, the clock deviation of electronic equipment is unique. [0003] At present, there are mainly two methods for measuring clock skew: [0004] One is to use a high-precision clock measurement device to measure the clock deviation of the electronic device. However, this high-precision clock measurement device is very expensive, and at the same time, the measurement device needs to be physically linked to the network device, which is limited by the geographical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06
CPCH04J3/0658
Inventor 张奕胡涛
Owner 成都源知信息技术有限公司
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