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Link scheduling method, device and system of software-defined networking (SDN)

A link scheduling and network technology, applied in the field of communication, can solve the problems of lack of dynamic link load adjustment, achieve the effect of dynamically adjusting network link load, ensuring network service quality, and improving user experience

Inactive Publication Date: 2016-11-16
GUANGZHOU VCMY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the link between the switches is congested, improper system scheduling will bring serious pressure on link bandwidth expansion. The existing technology mainly solves how to better allocate network resources to balance the load of communication links. Lacks the ability to dynamically adjust link load

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  • Link scheduling method, device and system of software-defined networking (SDN)
  • Link scheduling method, device and system of software-defined networking (SDN)

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see figure 1 , the present invention provides an embodiment of a link scheduling method of an SDN network, which can be executed by a switch, or by a device configured on the switch side, including steps S11 to S13, specifically as follows:

[0037] S11. Determine the priority of the service request according to the characteristics of the service request.

[0038] Preferably, the characteristics of the service request include at least one of network ba...

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PUM

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Abstract

The invention discloses a link scheduling method of software-defined networking (SDN). The method comprises the following steps: according to characteristics of a service request, determining the priority of the service request; when the bandwidth utilization rate of a main link reaches a first threshold that is preset, sending a warning signal to a controller so that the controller can return a flow table, wherein the flow table is utilized to indicate a service request that having the priority greater or equal to a preset second threshold to be transmitted on the main link while a service request having the priority smaller than the second threshold to be transmitted on a standby link; and according to the flow table, forwarding service data packets of the service requests following the sequence of the priorities of the service requests from high to low. Embodiments of the invention also provide a switch, a controller, and a link scheduling system of SDN. According to the link scheduling method, device and system of the SDN, network service quality and user experience are improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a link scheduling method, device and system of an SDN network. Background technique [0002] Software-Defined Networking (SDN) is a new type of network architecture. The SDN architecture transforms the data packet forwarding process completely completed by switches and routers into independent processes completed by OpenFlow switches and controllers, realizing the separation of network device control planes and data planes, and has programmable features. The underlying infrastructure is abstracted into applications and network services, thereby realizing flexible control of network traffic. [0003] With the development of cloud computing, the scale of the network is getting larger and larger, so the traffic transmission between the networks is very large. When the link between the switches is congested, improper system scheduling will bring serious pressure on l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/803H04L12/851H04L12/931
CPCH04L47/125H04L47/2433H04L49/205
Inventor 王志雄熊常春
Owner GUANGZHOU VCMY TECH CO LTD