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Flow control method and system in SDN network

A flow control and network technology, applied in the field of communication, can solve the problems of complex protocol configuration and adding a large number, and achieve the effect of maintaining stable, efficient operation, and reducing the link load.

Active Publication Date: 2016-11-16
INSPUR GROUP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

In order to achieve the above control in the traditional network architecture, a large number of protocols need to be added and the configuration is complicated

Method used

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  • Flow control method and system in SDN network
  • Flow control method and system in SDN network

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Experimental program
Comparison scheme
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Embodiment

[0022] A flow control system under the SDN network described in this embodiment, as attached figure 1 As shown, its system architecture mainly includes: application service module, control module, network forwarding module and QoE feedback module; among them, the application service module determines the average KQI indicators and their weights of various services through statistical sampling; the control module collects the latest KPI data, calculate the forwarding flow table, monitor the transmission process in real time, and adjust the forwarding strategy in time according to the network status; the control module sends the flow table to the network forwarding module, and the network forwarding module reports the link flow information, forwards the data according to the issued flow table, and Report information to the control module; the QoE feedback module pre-establishes the mapping relationship between KPI and KQI according to the distribution structure of the system and ...

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Abstract

The invention discloses a flow control method and a flow control system in an SDN network and relates to the field of communication technology. An application module in the system determines average KQI indexes and weight of all kinds of services. An SDN controller gathers the latest KPI data, calculates a forward table, and monitors a transfer process in real time. An OpenFlow switch reports link flow information, and forwards data according to the sent down flow table. A QoE feedback module establishes mapping relation between KPI and KQI. Flow control is performed through the feedback information of the QoE. With application of the flow control system and the flow control method, through real-time QoE information of users, the problem of network congestion can be found in time, and therefore forward strategies can be dynamically adjusted; link load can be effectively mitigated; the stable performance of the application is maintained; and efficient network operation is ensured.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a flow control method and system under an SDN network. Background technique [0002] As users' requirements for network performance increase, the data traffic used to run user services is also increasing. An overload of transmission traffic on a certain link, or a burst flow occupying services will lead to network congestion and service performance degradation. There are three main methods of network flow control, namely source control, destination control and data transmission process control. In order to achieve the above control in the traditional network architecture, a large number of protocols need to be added and the configuration is complicated. [0003] In view of the deficiencies in the existing network flow control, the present invention proposes a flow control method under the SDN network, which properly adjusts the resource allocation strategy through the QoE ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/851H04L12/875H04L12/725H04L47/56
CPCH04L45/302H04L47/2408H04L47/2425H04L47/56
Inventor 熊琦郑亮于治楼
Owner INSPUR GROUP CO LTD
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