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Service rate control method and device for control plane time synchronization queue

A time synchronization and control plane technology, applied in the field of communication, can solve the problems of delay jitter and asymmetric round-trip ranging delay of synchronization packets, and achieve the effect of preventing delay jitter and reducing the possibility of discarding synchronization packets.

Active Publication Date: 2020-04-17
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] How to overcome the phenomenon of delay jitter caused by the asymmetry of the round-trip ranging delay of the synchronization message has become an urgent technical problem to be solved

Method used

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  • Service rate control method and device for control plane time synchronization queue
  • Service rate control method and device for control plane time synchronization queue
  • Service rate control method and device for control plane time synchronization queue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a power grid reliability analysis method, which is suitable for analyzing the reliability of the power grid system, such as figure 1 As shown, the method includes the following steps:

[0043] S11: Establish a time synchronization queue according to a preset identification; specifically, build an independent virtual time synchronization queue (i.e. a time synchronization queue) with "destination as a distinction (i.e. a preset identification)" at the input port of the switch to distinguish it from the switch For other types of traffic queues, destination differentiation prevents blocking between different isochronous message flows in the same switch.

[0044] S12: Obtain the current first scheduled service rate and the first actual service rate of the time synchronization queue; specifically, as figure 2 As shown, when the synchronization message enters the synchronization queue, a virtual time synchronization queue i ∈ [1, N] (time synchroniz...

Embodiment 2

[0077] This embodiment provides a service rate control device for a control plane time synchronization queue, such as Figure 5 As shown, the device includes: establishing module 51, obtaining module 52, judging module 53, reducing module 54 and increasing module 55, and the main functions of each module are as follows:

[0078] The establishment module 51 is configured to establish a time synchronization queue according to a preset identifier. For details, refer to the detailed description of step S11 in Embodiment 1.

[0079] The obtaining module 52 is configured to obtain the current first reserved service rate and the first actual service rate of the time synchronization queue. For details, refer to the detailed description of step S12 in Embodiment 1.

[0080] The judging module 53 is configured to judge whether the first actual service rate is greater than the first reserved service rate. For details, refer to the detailed description of step S13 in Embodiment 1.

[008...

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Abstract

The present invention provides a method and device for controlling the service rate of a time synchronization queue on a control plane. The method includes: establishing a time synchronization queue according to a preset identifier; obtaining the current first reserved service rate and the first actual service rate of the time synchronization queue; Service rate: judging whether the first actual service rate is greater than the first reserved service rate; if the first actual service rate is greater than the first reserved service rate, reducing the first reserved service rate. This scheme adjusts the first reserved service rate in real time by constructing an independent time synchronization queue, so that the first actual service rate approaches the first reserved service rate, so that the synchronization message has a certain preset fixed delay in the switch. Time, and then achieve the effect of preventing delay jitter, without occupying the effective bandwidth of the switch, not only achieves the purpose of consuming the waiting "time" of synchronization packets, but also reduces the possibility of discarding synchronization packets at the end of the queue.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for controlling the service rate of a time synchronization queue on a control plane. Background technique [0002] SDN (Software Defined Network) is a new network innovation architecture of Emulex network and a way to realize network virtualization. Its core technology OpenFlow separates the control plane and data plane of network equipment to realize Flexible control of network traffic, making the network more intelligent as a pipeline. [0003] All network time synchronization protocols have the problem of asymmetry of the round-trip ranging delay of the synchronization message, which is specifically manifested in: ① The uncertainty of the time delay of the synchronization message switching nodes in the network. Synchronization packets generate round-trip path delays through network switching devices such as transmission media, repeaters, switches, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/875H04L12/885H04L47/56H04L49/9023
CPCH04L47/56
Inventor 刘川李炳林郭经红张刚娄征杨光徐涛胡致远黄红兵杨鸿珍刘俊毅娄佳彭瑶
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD