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Communication network congestion control method

A technology of congestion control and communication network, which is applied in the field of network communication to achieve the effect of eliminating cost burden, reducing implementation cost, and reducing cost burden

Inactive Publication Date: 2010-11-03
BEIJING YICHEN COMM TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not a problem to realize the traffic shaping distribution of the end station equipment, but the traffic shaping operations at the edge of the network are concentrated in a large number, which is the main problem

Method used

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  • Communication network congestion control method

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Experimental program
Comparison scheme
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Embodiment 1

[0072] This embodiment provides a specific method for communication network congestion control in the case of a single network domain, which is called the network domain model of the congestion control method, see Figure 4 , the specific steps of the method are as follows:

[0073] Step 101: When one or more congestion points are generated in the communication network, each congestion point generates a series of congestion events, and the congestion events drive the preset calculation process of responsibility points. Every time a T cycle time length is calculated and accumulated, the responsibility The score calculation process calculates the responsibility score R of one T beat of the source point.

[0074] If all source points consciously restrict traffic, then the entire network can guarantee that no congestion accidents will occur by using the resource reservation mechanism; , the congestion event generated by the congestion accident will drive the preset responsibility...

Embodiment 2

[0167] This embodiment provides a specific method for congestion control of the entire network, see Figure 11 and Figure 12 .

[0168] Figure 11 The graphics and symbols in the Figure 5 , the inner area of ​​the two added irregular closed solid lines is the part of the entire network except the network domain, the communication network with irregular boundaries on the right is called the source network, and the communication network with irregular boundaries on the left is called the sink network , the source network includes the source point X, and the sink network includes the sink point Y. Wherein, the source network and the sink network may be end station equipment, a network domain or a communication network composed of multiple network domains. If they are end station equipment, this embodiment degenerates into Embodiment 1. Figure 11 The given congestion control model of the whole network is called the whole network model.

[0169] The whole network model is t...

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Abstract

The invention discloses a congestion control method for a communication network, which pertains to the field of network communication. The method comprises the following steps: when a certain information source point excessively sends data and one or more congestion points are caused in the communication network; each congestion point can generate a series of congestion events which drive a preset responsibility point calculating process. A responsibility point R of the information source point is obtained when the calculation of the time span of a T tempo is accumulated; during a preset appraisal period, the responsibility point R of every T tempo is accumulated, and a total responsibility point U of the information source point is obtained; according to the total responsibility point U and a preset punishing strategy, punishment with sufficient strength is carried out to the information source point so as to force the information source point to limit flow consciously. By establishing a supervision mechanism, the method causes the information source point to limit flow consciously, thus saving a flow shaping module at the edge port of the communication network, eliminating the main cost burden for the whole network to realize congestion control and remarkably lowering realizing cost for promising the communication network of QoS as a whole.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method for controlling congestion of a communication network. Background technique [0002] Congestion Control (CC for short) is a necessary function for an effective communication network that promises QoS. For common basic IP networks, there is no CC function at the network layer, but an end-to-end CC function is provided at the transport layer. (TCP protocol), because there is no strong support for the CC function of the network layer, the CC function provided by the transport layer is greatly limited. [0003] With the continuous improvement of people's requirements on the performance of communication networks, researchers have made unremitting efforts to propose communication networks such as IP networks and ATM networks that support RSVP, trying to provide CC functions at the network layer. To this end, traffic shaping (Traffic Shaping, TS for short) needs to be perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L47/22
Inventor 许利芳梁满贵
Owner BEIJING YICHEN COMM TECH INST
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