Distributed network virtualization system for SDN (software defined network)

A technology of distributed network and virtualization system, applied in transmission system, digital transmission system, data exchange network, etc., can solve the problem of inability to meet the high reliability and scalability requirements of network virtualization system, lack of distributed architecture design, etc. problems, to achieve the effect of solving reliability and scalability requirements, improving programmability, and improving system performance

Active Publication Date: 2017-12-29
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problems to be solved by the present invention are as follows: In order to solve the defects that the current network virtualization system of the SDN network lacks a distributed architecture design and cannot meet the high re

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  • Distributed network virtualization system for SDN (software defined network)
  • Distributed network virtualization system for SDN (software defined network)
  • Distributed network virtualization system for SDN (software defined network)

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Embodiment Construction

[0016] In order to better clarify the content and implementation details of the present invention, several embodiments are described below in conjunction with the accompanying drawings.

[0017] When designing and implementing network virtualization, this solution uses the tenant ID to distinguish each virtual network deployed on the underlying physical network. During implementation, the upper-layer application will mark a specific tenant ID for each virtual SDN network cut out, and then in the process of devirtualization, the system will use the mapping relationship between the tenant ID and the storage virtual network and the underlying physical network. Each message body is sent to the underlying physical switch. The underlying physical switch in the present invention adopts a protocol-insensitive forwarding switch.

[0018] The distributed NVH system of the present invention is characterized by high availability. In the actual production environment, in order to improve...

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Abstract

The invention discloses a distributed network virtualization system for an SDN (software defined network). The distributed network virtualization system comprises an SDN southbound protocol module, a kernel module, a virtualization layer module and a tenant application module, the SDN southbound protocol module can realize an SDN southbound protocol, the kernel module stores and manages low-level physical network data through distributed protocol Raft (replication and fault tolerant), different network virtualization systems are synchronized, and the virtualization layer module is used for realizing network virtualization. According to the distributed network virtualization system, an efficient network virtualization system is provided for the SDN by the aid of the advantages of protocol oblivious forwarding technique and distributed SDN controller open network operating system design, the requirements of reliability and expansibility of the network virtualization system can be met, and programmability of the virtualization SDN can also be improved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a distributed network virtualization system of an SDN network capable of realizing protocol-free forwarding. Background technique [0002] With the rapid development of network technology, network virtualization has attracted more and more attention from academia and industry. Using network virtualization, equipment providers can implement logic-independent virtualization in the underlying physical network resources according to the requirements of service providers. Dynamically perform network slicing. SDN is a technology that realizes the separation of network data plane and control plane, thereby improving network programmability. Combining network virtualization and SDN technology can realize the virtualization of SDN network. In this way, different tenants have logically independent virtual SDN networks, and the underlying physical network resources can provid...

Claims

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Application Information

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IPC IPC(8): H04L12/24
Inventor 朱祖勍牛彬黄会柏唐绍飞
Owner UNIV OF SCI & TECH OF CHINA
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