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A SDN slice construction method based on traffic clustering

A construction method and flow technology, applied in the field of communication, can solve the problems of lack of slice construction scheme and scientific analysis

Active Publication Date: 2021-04-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current papers and forum materials on network slicing are still limited to the concept definition discussion of slicing and the underlying technical implementation details, lacking an overall slicing construction plan and scientific analysis. Therefore, it is particularly important to solve this type of problem

Method used

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  • A SDN slice construction method based on traffic clustering
  • A SDN slice construction method based on traffic clustering
  • A SDN slice construction method based on traffic clustering

Examples

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Embodiment Construction

[0069] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples, which are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.

[0070] Such as figure 1 As shown, the network includes an SDN controller and several SDN forwarding devices. The controller has a centralized perspective and can uniformly collect and control the network and device status information of the SDN forwarding device. The forwarding device is responsible for receiving the flow sent by the controller. The table performs routing and forwarding of data. Different network end users are connected to SDN forwarding devices, and each forwarding device can maintain communication with the SDN controller through the secure southbound link of SDN, and there is a network link connection between each forwarding device to transmit data flow.

[0071] ...

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Abstract

The purpose of the present invention is to construct network slices suitable for each type of traffic transmission by counting and clustering the service quality requirements of all network flows, so as to better utilize network resources and ensure network service quality; in each slice update period T, Its main steps include: collecting the user's SLA (service level agreement) and the physical link resource capacity C and available resources R of the entire network; counting the QoS characteristics of each traffic demand to obtain the OD traffic characteristics; clustering the OD traffic characteristics to obtain typical The type and scale of QoS requirements; assemble the traffic of each type of QoS requirements into physical links to obtain network slices suitable for carrying corresponding QoS traffic, and the SDN controller sends the slice information to the slice maintenance table of the forwarding device; when SDN When the forwarding device receives the customer's data stream, it searches for a suitable slice for forwarding according to the QoS request, and monitors slice performance such as resource utilization and SLA violations within the slice.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to an SDN slice construction method based on traffic clustering. Background technique [0002] With the continuous enrichment of Internet business types, the types of service reliability required by network applications are increasing day by day. Guaranteed quality of service (QoS, Quality of Service) requires reliable contract transmission for different network flows, especially end-to-end reliable contract transmission, which is one of the hotspots that continue to be concerned by academia and industry. This requires analyzing the characteristics of each business flow and defining a good QoS mechanism in the network. However, traditional networks provide best-effort services and cannot guarantee reliable transmission of traffic. QoS models represented by IntServ and DiffServ often only consider bandwidth, and resource reservation is blind. Network flows that reserv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04W28/16
CPCH04L41/00H04L41/0893H04W28/16
Inventor 田龙伟史景伦
Owner SOUTH CHINA UNIV OF TECH
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