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

A technology of software-defined network and virtual network, which is applied in the field of distributed virtual network monitor, can solve the problems that the additional delay is not well controlled, cannot meet the large number of users, and the cache hit rate is low, so as to improve the scalability Performance and reliability, reduce additional time consumption, and reduce the effect of additional delay

Active Publication Date: 2021-02-05
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] A method for realizing a distributed virtual network monitor based on a software-defined network comprises the following steps:

[0042] 1) Composition: A distributed virtual monitor consists 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, there is no need to customize the OpenFlow protocol, and there is 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 event coordination services. The time coordination service itself is ...

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Abstract

The invention discloses an implementation method of a distributed virtual network monitor based on a software defined network. The implementation method comprises the following steps: 1) forming; 2) updating; 3) synchronization and conversion; 4) interaction; 5) construction of a global network topology view; 6) construction of a conversion table; 7) caching. According to the method, global mapping of the virtual network and full isolation of the address are realized, additional delay caused by network address and control logic conversion is reduced, the overall performance of the network is ensured while the expansibility and reliability of the whole virtual network are improved; besides, it is ensured 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 network virtualization technology, in particular to a method for realizing a distributed virtual network monitor based on 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. Like a physical network, it has a network address space, ports and link resources on the data plane, and control resources on the control plane. Depending on the virtualization technology used, the virtual network can abstract and isolate these resources at different levels. Existing virtualization protocols mainly complete resource virtualization and isolation at the port and link levels, but cannot implement resource virtualization and isolation at the control plane. Virtual Network Monitor is a monitoring and management software that can complete all-round resource virtuali...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L29/08H04L29/12
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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