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Network flow shunting method, network node and network system

A technology of network nodes and network traffic, which is applied in the field of communication to achieve dynamic load sharing, reduce network congestion, prevent or prevent network congestion

Active Publication Date: 2012-07-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a network traffic distribution method, network nodes and systems, which are used to prevent or solve network congestion problems caused by large-bandwidth services such as video

Method used

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  • Network flow shunting method, network node and network system
  • Network flow shunting method, network node and network system
  • Network flow shunting method, network node and network system

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Experimental program
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Embodiment Construction

[0017] First of all, it should be noted that, in all embodiments of the present invention:

[0018] Network congestion does not refer to packet loss when the link utilization rate reaches 100%, but refers to the link utilization rate being higher than the set threshold. For example, it can be specified that the network is congested when the link utilization rate is higher than 60% or 80%. ;

[0019] A light-loaded path refers to a path with a low link utilization rate among multiple selectable forwarding paths, and the link utilization rate of the light-loaded path must not be higher than the set threshold for network congestion.

[0020] A content source refers to a physical server or a virtual server that directly provides content to end users. The content may include video, audio or other resources that need to be transmitted through the network.

[0021] Distributing traffic refers to dividing traffic according to different subnets, and sending the traffic of a specific s...

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PUM

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Abstract

The embodiment of the invention discloses a network flow shunting method, a network node and a network system. The method comprises acquiring the link use ratio information of the network; calculating the shortest path and the second shortest path to a content source; selecting a light path from the shortest path and the second shortest path according to the link use ratio information; and selecting flow and dispersing the selected flow to the light path. The method can select the light path according to the link use ratio information of the network, and disperse the flow through the light path to achieve the dynamic load sharing of the flow, thereby preventing and alleviating network congestion.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for offloading network traffic, a network node and a system. Background technique [0002] In the current network, video service traffic accounts for the majority of Internet traffic. It is estimated that by 2014, video service traffic will account for 91% of Internet traffic. [0003] Different from the traditional WWW (World Wide Web) browsing service, the video service has the characteristics of high bandwidth consumption per stream and long duration. The traditional WWW browsing service consumes about 100Kbps of bandwidth per stream, while the bandwidth consumption of each stream of standard definition video is 2Mbps, and the bandwidth consumption of each stream of high definition video is 8Mbps. The duration of each stream of traditional WWW browsing is about 10 seconds, while the duration of each stream of video services usually exceeds 3 minutes. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56
CPCH04L43/0882H04L47/125H04L45/24H04L45/125
Inventor 郑合文陈国义
Owner HUAWEI TECH CO LTD