A server load balancing method for software-defined network

A load balancing, software-oriented technology, applied in the field of computer networks, can solve problems such as increasing the complexity of basic equipment and increasing the difficulty of network management of network processing data redundancy, and achieves the effect of improving the effect, improving the load balancing ability and efficiency.

Active Publication Date: 2018-12-14
NANJING ZHAOSHICHANG NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These patching methods additionally increase the complexity of the basic equipment, increase the redundancy of network processing data and the difficulty of network management

Method used

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  • A server load balancing method for software-defined network
  • A server load balancing method for software-defined network
  • A server load balancing method for software-defined network

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0086] In this embodiment, the server load balancing method for software-defined network adopts such as figure 2The topology shown connects related devices, and four servers form a web server cluster. The controller is responsible for deploying dynamic policies to balance the access burden of each Web server. The server cluster provides a virtual IP address externally. When a new host user accesses the virtual IP of the Web server cluster or the server cluster needs to perform load scheduling, according to the load balancing method in the present invention, the SDN controller adds the flow table or modifies the flow table The way to assign a suitable server to the user's host, the specific method includes the following steps:

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Abstract

The invention discloses a server load balancing method oriented to a software-defined network. In a software-defined network (Software Defined Network, abbreviated as SDN) environment, the server load balancing method realized by using the idea of ​​modularization includes the following steps in sequence: port detection The module regularly counts the real-time traffic of the SDN switch port connected to each server, calculates the traffic rate and the predicted port flow rate at the next test time point; the port flow rate analysis module analyzes the traffic rate of each port obtained from the port detection module, and judges whether it is necessary to load Balancing: the load balancing module performs load balancing on the server cluster, and the SDN controller issues flow tables to distribute new business traffic to designated servers. The present invention comprehensively considers the real-time flow rate and the predicted flow rate and combines the structural advantages of SDN control and forwarding separation, and has better load balancing capability and efficiency.

Description

technical field [0001] The invention belongs to the technical field of computer networks, and in particular relates to a server load balancing method oriented to a software-defined network. Background technique [0002] In the traditional TCP / IP network structure system, network device logic control and data forwarding are tightly coupled, lacking flexibility, and various problems and challenges are exposed as the network scale rapidly expands. People can only continue to add new network protocols or add various complex functions to basic network devices such as switches and routers. These patching methods additionally increase the complexity of the basic equipment, increase the redundancy of network processing data and the difficulty of network management. The emergence of the SDN concept and related technologies is precisely to overcome the above shortcomings. [0003] SDN is a new network architecture with CNC separation and network programmable. From top to bottom, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/1001
Inventor 龚冉崔杰王良民仲红谢晴晴殷赵霞肖云
Owner NANJING ZHAOSHICHANG NETWORK TECH
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