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A network disaster recovery system and method based on software-defined network technology

A software-defined network and recovery method technology, which is applied in the field of disaster recovery and recovery, can solve problems such as consistency processing problems and controller scalability problems, so as to reduce the number of flow tables, avoid round-trip transmission delays, and avoid consistency problems Effect

Active Publication Date: 2018-07-03
NANJING UNIV
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Problems solved by technology

However, because there are so many reconnection requests caused by zone failures, handing over all zone failure reconnection requests to the control plane will bring additional problems, including: controller scalability issues, packet consistency processing issues, and recovery delay problem
Simply introducing software-defined networking still doesn't work well in this scenario

Method used

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  • A network disaster recovery system and method based on software-defined network technology
  • A network disaster recovery system and method based on software-defined network technology
  • A network disaster recovery system and method based on software-defined network technology

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0046] The network disaster recovery system and method based on software-defined network technology described in the present invention uses real network topology information as input, such as figure 1 As shown in the system module diagram given: the system is based on software-defined network technology, including a backup topology generation module located in the data plane of the software-defined network and a splicing module located in the control plane of the software-defined network; the backup topology generation module is used for Generate a backup topology before the disaster, calculate the backup path according to the geographical characteristics of the disaster, and install it in the data plane of the software-defined network, and perform local fast r...

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Abstract

The invention discloses a network disaster recovery system and method based on software-defined network technology, which is based on software-defined network technology, including a backup topology generation module located in the data plane of the software-defined network and splicing of the control plane located in the software-defined network module; the backup topology generation module is used to generate a backup topology before the disaster, and calculate the backup path according to the geographical characteristics of the disaster and install it in the data plane of the software-defined network; The connection request executes local fast recovery; the splicing module is used to process those disaster fault reconnection requests that cannot be processed on the data plane at the control plane. Compared with the prior art, the present invention realizes fast recovery, reduces the load of the controller, reduces the number of flow meters to be installed, and has high application value and broad application prospect.

Description

technical field [0001] The present invention relates to disaster recovery, in particular to a network disaster recovery system and method. Background technique [0002] Natural disasters (such as earthquakes, floods) and man-made disasters (such as power failures, terrorist attacks) will cause a large number of network devices to fail at the same time, causing a large number of users to be disconnected, and the post-disaster recovery is difficult and takes a long time. With the rapid development of Internet technology and the advent of the era of big data, the long-term network disconnection caused by such incidents will cause a large number of users to lose connection and data loss, resulting in immeasurable economic losses. Therefore, the reliability requirements for large-scale networks Also getting higher and higher. However, with the large-scale deployment of the network, the network is easily damaged by natural disasters and man-made disasters, causing network failure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04L41/0668H04L41/12
Inventor 王晓亮谢安陆桑璐
Owner NANJING UNIV
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