Method and system for avoiding electric power data network node congestion

A data network and electric power technology, which is applied in the field of power data network node congestion avoidance method and system, can solve problems such as not being able to avoid node congestion well, and achieve the effect of avoiding node congestion and meeting communication needs

Active Publication Date: 2013-07-10
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
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AI Technical Summary

Problems solved by technology

Although the traditional congestion avoidance method effectively avoids the congestion on the link, it cannot avoid the node congestion very well.

Method used

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  • Method and system for avoiding electric power data network node congestion
  • Method and system for avoiding electric power data network node congestion
  • Method and system for avoiding electric power data network node congestion

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specific Embodiment

[0041] First, detect the congestion state, and update the congestion state identification of the node according to the congestion state;

[0042] If QL , then the congestion state of the node is no congestion, Flag C =0;

[0043] If R L ≤QH, the congestion state of the node is moderate congestion, Flag C =1;

[0044] If R H ≤Q, the congestion state of the node is serious congestion, Flag C =2.

[0045] Where Q represents the length of the node cache queue, R L Indicates the moderate congestion threshold of the node, R H Indicates the severe congestion threshold of the node, Flag C Indicates the node congestion status;

[0046] In this specific embodiment, the congestion state is used to identify the corresponding congestion state, corresponding to the aforementioned congestion degree, and the congestion state is divided into three categories, which are not limited to this in specific implementation.

[0047] Secondly, monitor the congestion status identification, if ...

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Abstract

The invention provides a method and a system for avoiding electric power data network node congestion. The method for avoiding the electric power data network node congestion comprises the following steps: the length of a node buffer queue is obtained, and the length is compared with a preset length threshold value; the congestion degree of nodes is determined according to the compared result of the length and the preset threshold value; when the congestion degree reaches the preset congestion threshold value, the positions of electric power communication services in the node buffer queue are adjusted according to preset service priority level identification; and services in lower priority levels and located at the tail of the adjusted node buffer queue are discarded, corresponding source nodes are informed to choose routes again. Due to the fact that the congestion degree of the nodes and the priority levels of the electric power communication services are taken into account reasonably, the node congestion is effectively avoided, and the communication requirements of the electric power communication services are met.

Description

technical field [0001] The invention relates to the field of power communication, in particular to a method and system for avoiding node congestion in a power data network. Background technique [0002] With the development of the power system in the direction of digitization, data applications such as power dispatching automation information, power consumption management information, marketing information, financial information, substation image information, and enterprise MIS information are gradually increasing, and the requirements for communication technology are also getting higher and higher. , the traditional communication bearing mode of the power system is increasingly difficult to meet the needs of users in terms of transmission rate, security, scalability, adaptability, and QoS (Quality of Service). As the main data bearing mode of the power data network, the IP network has been greatly developed. [0003] Congestion is an inherent property of networks. During ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/833H04L12/865H04B3/54H04L47/31H04L47/6275
Inventor 李伟坚蒋康明曾瑛樊冰吴润泽唐良瑞
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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