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An openflow switch, network system and bandwidth sharing method

A technology of bandwidth sharing and switching, applied in the field of data communication, can solve the problem that Internet users cannot share network bandwidth fairly, and achieve the effect of ensuring full utilization

Active Publication Date: 2019-04-05
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A technical problem solved by the present invention is: when the network is congested, Internet users cannot share the network bandwidth fairly

Method used

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  • An openflow switch, network system and bandwidth sharing method
  • An openflow switch, network system and bandwidth sharing method
  • An openflow switch, network system and bandwidth sharing method

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Embodiment Construction

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0030] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0032] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the Authoriz...

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Abstract

The invention discloses an OpenFlow switch, a network system and a bandwidth sharing method. The OpenFlow switch is serially connected between a user network and an exit gateway, and the OpenFlow switch comprises a switching unit and a control unit. When the port flow D of the switching unit is judged to exceed a preset flow threshold D0, the control unit calculates the average flow of hosts and the sum of flow to be abandoned, for the hosts exceeding the average flow, the number of packet bytes to be abandoned is calculated in proportion, flow table modification information is issued to the switching unit, and the operation on the flow table is changed to abandoning, wherein the proportion is the proportion of the difference between the data forwarding size of the host and the average flow to the sum of flow to be abandoned, and the port flow is the downlink port flow or the uplink port flow. According to the invention, online users are enabled to fairly sharing the network bandwidth when network congestion happens.

Description

technical field [0001] The invention relates to the field of data communication, in particular to an OpenFlow switch, a network system and a bandwidth sharing method. Background technique [0002] The existing network usually chooses random packet loss technology to deal with network congestion caused by multi-user sharing of network bandwidth. Because some excessive users occupy a large amount of network bandwidth, regardless of the size of bandwidth traffic (such as Web, P2P download, video, email, etc.) Both will cause the application to run slowly, resulting in a poor user experience for normal users, especially for low-bandwidth applications (such as the Web). For example, the internal network of an enterprise is often congested, causing some users to surf the Internet slowly, and bandwidth cannot be shared dynamically and fairly. [0003] Software Defined Network (Software Defined Network, SDN) is a new network innovation architecture. Its core technology is to separa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04L12/823H04L47/32
Inventor 姚文胜陈文华李嫚乔宏明
Owner CHINA TELECOM CORP LTD