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Air-ground integrated network architecture and data transmission method based on SDN and NFV technology

A technology of network architecture and data transmission quality, applied in the field of space-ground integrated network architecture and data transmission, it can solve problems such as poor link conditions, long delay of satellite links, and inability to guarantee end-to-end transmission, and achieve high utilization rate , reasonable space resources, the effect of meeting service quality requirements

Inactive Publication Date: 2016-10-26
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the characteristics of the space network environment, such as large satellite link delay, poor link conditions, and inability to guarantee end-to-end transmission, the Transmission Control Protocol (TCP) used in the ground network cannot continue to be used in the space network.

Method used

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  • Air-ground integrated network architecture and data transmission method based on SDN and NFV technology
  • Air-ground integrated network architecture and data transmission method based on SDN and NFV technology
  • Air-ground integrated network architecture and data transmission method based on SDN and NFV technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Embodiment 1: Tunnel implementation of space network control link

[0096] This embodiment mainly relates to a method for implementing OpenFlow signaling interaction between an SDN controller and an OVS in a bundle tunnel in a space network. Such as Figure 6 Shown is a schematic diagram of Embodiment 1, which uses a bundle tunnel, that is, encapsulates OpenFlow signaling data in a bundle data packet. The tunneling program adopts a dual-process method. One process is responsible for receiving the bundle data packet and decapsulating it and sending it to the TCP / IP protocol stack processing process; the other process is responsible for receiving the data packet of the TCP / IP protocol stack and encapsulating it into the bundle data packet. The specific implementation method is:

[0097] Create virtual network port tun0 on the GEO satellite node and MEO satellite node respectively, and run the tunnel program. (1) OVS sends signaling to the POX controller: establish a de...

Embodiment 2

[0100] Embodiment 2: Implementation method of space-ground integrated network data transmission and on-demand service

[0101] The server in data center 1 and the server in data center 2 perform data interaction through the satellite network. The service requirement for data interaction is to ensure data security, so apply for security-related network service functions in the data center, and apply for billing services and performance enhancement services at the SG. Since the amount of data exchanged between data centers is large, a large bandwidth is required, so in the satellite network, a link with a large bandwidth needs to be allocated. Such as Figure 7 Shown is the schematic diagram of embodiment 2.

[0102] First, the network service function in the data center registers with the data center controller. In this embodiment, the security-related network service functions in data center 1 and data center 2——firewall and intrusion detection service, register with the con...

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Abstract

The invention discloses an air-ground integrated network architecture based on a software defined network and network function virtualization. According to the system architecture, the entire network consists of a ground network part and a space network part, and is divided in a unified manner into a management layer, a control layer and a forwarding layer. The management layer is responsible for registering and querying the network status and network service functions of the ground part and the space part in the air-ground integrated network and making routing, security, billing, service call and resource management strategies. The control layer consists of a ground part and a space part, and is responsible for controlling data forwarding according to the strategies of the management layer and collecting the information of network links and network service functions. The forwarding layer consists of a ground part and a space part, and is responsible for forwarding data and providing network service functions. The architecture uses a software defined network and an idea of network function virtualization, and efficient information transmission control and on-demand satellite service providing are realized in an air-ground integrated network.

Description

technical field [0001] The present invention relates to the field of Internet technologies, in particular to a space-ground integrated network architecture and a data transmission method based on software-defined network (SDN) technology and network function virtualization (NFV) technology. Background technique [0002] Since the existing Internet came out, it has penetrated into all aspects of human social life including politics, culture, education, health, sports and even medical treatment, and has played a huge role in promoting the development of human society. Since the beginning of the 21st century, with the rapid development of satellite communications and the increasing demand for space applications, the role of space information networks in the fields of economy and national defense, such as aerospace measurement and control, earth observation, and space science experiments, has become more and more obvious. New and higher requirements are put forward for the infor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L12/24
CPCH04B7/18519H04B7/18597H04L41/00
Inventor 周华春李泰新叶玥李观文徐琪李光磊张宏科
Owner BEIJING JIAOTONG UNIV
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