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Method and system for monitoring network time synchronization performance

A time synchronization and monitoring network technology, applied in time division multiplexing systems, electrical components, multiplexing communication, etc., can solve the problems of high cost of testing and maintenance, unavailability, lack of continuous monitoring means, etc., to reduce The effect of testing and maintenance costs, reducing network bandwidth occupancy, and reducing communication packet traffic

Active Publication Date: 2021-10-22
电信科学技术第五研究所有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The self-monitoring of the synchronization device can reflect certain faults, but the performance monitoring and evaluation is not accurate and comprehensive enough to reflect the network time synchronization performance
The instrument inspection method lacks the continuity of long-term data and the collaborative analysis of data at each site. Usually, a point-to-point single-port test method is used, which has a certain effect on single-point and single-port maintenance, and cannot reflect the situation of the entire network. Meet the application scenarios of remote real-time online performance monitoring
Generally speaking, the current time-frequency synchronization device node performance lacks effective continuous monitoring methods, especially network time synchronization performance monitoring methods, which cannot effectively monitor time synchronization quality degradation, unavailability, interference and other faults. Timing performance analysis and evaluation capabilities, unable to display the source-to-end timing performance situation, and unable to immediately discover hidden dangers in network timing

Method used

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  • Method and system for monitoring network time synchronization performance
  • Method and system for monitoring network time synchronization performance
  • Method and system for monitoring network time synchronization performance

Examples

Experimental program
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Embodiment 1

[0058] Based on the design principle of the present invention, this embodiment proposes a method for monitoring network time synchronization performance, including a PTP interface unicast multi-server monitoring process and an NTP interface unicast multi-server monitoring process;

[0059] (1) PTP interface unicast multi-server monitoring process

[0060] In the PTP unicast mode, the PTP master and slave clocks first need to establish a connection through the unicast signaling negotiation mechanism, and then point-to-point unicast communication can be performed. The unicast signaling negotiation mechanism conforms to the IEEE 1588 (PTP) standard, and the basic flow of the PTP unicast signaling negotiation mechanism is as follows: figure 1 shown. According to the IEEE 1588 (PTP) standard, the PTP master clock (Master) and the PTP slave clock (Slave) realize unicast mechanism negotiation through TLV (type, length, value) signaling exchange, and the TLV signaling used for unicas...

Embodiment 2

[0101] Based on the design principle of the present invention, in order to realize the above-mentioned method for monitoring network time synchronization performance, this embodiment proposes a system for monitoring network time synchronization performance, such as Figure 4As shown, the system includes monitoring equipment and monitoring data analysis software connected through a network management channel; the monitoring equipment adopts a plug-in design and is configured with multiple NTP / PTP interface monitoring cards of integrated design; the NTP / PTP The interface monitoring card is used to realize the PTP interface and the NTP interface, and connects a plurality of monitored PTP time servers and / or monitored NTP time servers; said NTP / PTP interface monitoring card is built-in for realizing the monitoring described in embodiment 1 The embedded software of PTP interface unicast multi-server monitoring process and NTP interface unicast multi-server monitoring process in the ...

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Abstract

The invention provides a method and a system for monitoring network time synchronization performance, which are based on a standard network time synchronization protocol (NTP / PTP), introduces a time division multiplexing (TDMA) design idea, adopts a unicast multi-server protocol processing mechanism, combines a unicast working mode with a time division multiplexing algorithm, and does not change the unicast working mode and a communication protocol of the NTP / PTP. A single physical port can monitor the performance of a plurality of network time service servers on line at the same time, point-to-multipoint NTP / PTP network time service interface integrated remote real-time on-line monitoring capability and whole network time service performance comparison analysis and evaluation capability are provided, the monitoring efficiency of network time synchronization performance is improved, the bandwidth occupancy rate is low, the test and maintenance cost is reduced, and the reliability of network time service is improved.

Description

technical field [0001] The invention relates to the technical field of time synchronization, in particular to a method and system for monitoring network time synchronization performance. Background technique [0002] Packet network time synchronization technology is a key technology for constructing a ground network timing system. It is mainly used to realize time synchronization between computers or devices in the network, and is widely used in information communication and other fields. Currently the most widely used network time synchronization technologies include NTP (Network Time Synchronization Protocol) and PTP (Precision Time Protocol). [0003] NTP usually adopts the client / server master-slave working mode, and realizes time synchronization through data packet interaction. Traditional NTP technology uses software time stamping, which has low time stamp precision and accuracy. Therefore, the synchronization precision is generally at the millisecond level. It is mai...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/0667
Inventor 楚鹰军何如龙龙丹邓皓胥骥王广才刘强赵耀
Owner 电信科学技术第五研究所有限公司
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