Implementation method of distributed virtual network monitor based on software-defined network

A software-defined network and virtual network technology, applied in the field of distributed virtual network monitors, can solve the problems of sensitive delay, poor control of additional delay, and low cache hit rate, so as to ensure overall performance and improve Scalability and reliability, and the effect of reducing additional delay

Active Publication Date: 2022-06-07
GUILIN UNIV OF AEROSPACE TECH
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Problems solved by technology

However, because the characteristics of SDN network flow forwarding are not considered, the hit rate of the cache is usually very low, and the additional delay is not well controlled. As a result, the SDN network virtualized by the virtual network monitor may not meet the requirements of Applications with a large number of users and delay-sensitive applications, such as online medical care, online banking, online teaching, etc.

Method used

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  • Implementation method of distributed virtual network monitor based on software-defined network
  • Implementation method of distributed virtual network monitor based on software-defined network
  • Implementation method of distributed virtual network monitor based on software-defined network

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Embodiment

[0041] An implementation method of a distributed virtual network monitor based on a software-defined network includes the following steps:

[0042] 1) Composition: A distributed virtual monitor is composed of multiple monitor nodes, such as figure 2 As shown, each monitor node is deployed on a controller node, each monitor node software is developed based on the controller node software, the communication between the monitor and the switch is completed through the controller, and the interaction between the controller and the switch Completed through the standard OpenFlow protocol, no need to customize the OpenFlow protocol, and no need to customize the standard OpenFlow switch;

[0043] 2) Update: The distributed virtual network monitor node software is developed based on the open source NOX controller software. It forms a physically separated and logically centralized distributed system through the event coordination service. The event coordination service itself is a distr...

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Abstract

The invention discloses a method for realizing a distributed virtual network monitor based on a software-defined network, including the following steps: 1) composition; 2) update; 3) synchronization and conversion; 4) interaction; 5) constructing a global network topology view; 6 ) Build the conversion table; 7) Cache. This method realizes the global mapping of the virtual network and the full isolation of addresses, reduces the additional delay caused by the conversion of network addresses and control logic, and improves the scalability and reliability of the entire virtualized network while ensuring that the network The overall performance ensures that the virtualized SDN network can provide corresponding service quality and user experience for different types of applications.

Description

technical field [0001] The invention relates to a network virtualization technology, in particular to an implementation method of a distributed virtual network monitor based on a software-defined network. Background technique [0002] Network virtualization refers to the technology of establishing, managing, and running virtual networks on physical networks. A virtual network is a network at the logical level. It has the same network address space as a physical network. It has port and link resources in the data plane and control resources in the control plane. Depending on the virtualization technology used, virtual networks can abstract and isolate these resources at different levels. The existing virtualization protocols mainly complete the resource virtualization and isolation at the port and link level, but cannot realize the resource virtualization and isolation of the control plane. Virtual Network Monitor is a monitoring management software that can complete all-ro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/12H04L41/14H04L43/50H04L61/25H04L67/1095H04L67/568
CPCH04L41/12H04L41/145H04L43/50H04L61/25H04L67/1095H04L67/568Y02D30/50
Inventor 廖灵霞王健赵长青潘衿衿秦斌马晓航冯彦明
Owner GUILIN UNIV OF AEROSPACE TECH
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