Construction method of survivable Overlay network

A network construction and survivability technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problem that the physical structure and physical topology of IP networks cannot be changed casually, IP networks do not have survivability, and cannot provide service-oriented services. Service and other issues

Inactive Publication Date: 2013-11-06
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing IP network itself does not have survivability capabilities, cannot provide business-oriented services, let alone provide business-oriented survivability mechanisms, and the physical structure and physical topology of the IP network cannot be changed casually

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  • Construction method of survivable Overlay network
  • Construction method of survivable Overlay network
  • Construction method of survivable Overlay network

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Embodiment Construction

[0065] In order to make the purpose, technical solution, and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific implementation examples.

[0066] figure 1 In order to apply the network architecture established by the method proposed in the present invention, the Overlay network topology can not only provide certain survivability attributes, but also enable the Overlay layer to have the ability to distinguish services, which overcomes the shortcomings of traditional IP networks that cannot provide specific services. according to figure 1 As shown, the business layer first determines the QoS and other parameters (delay, packet loss rate, etc.) requirements of the business according to the business type; then abstracts the virtual topology structure accordingly, so that the constructed Overlay network has good survivability. Overlay has different survivability qualities, s...

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Abstract

The invention relates to a construction method of a survivable Overlay network, which selects a plurality of paths meeting business needs for each node pair with path selection algorithm based on an overlapped punished thought, and classifies the paths into working paths and protective paths. Nodes and links in the working paths and the protective paths establish survivable Overlay level virtual topology for each node pair. Because the overlapped punishment thought is adopted, the working paths and the protective paths have great difference, so that the difference of paths in the Overlay network can be ensured, and the replacement success rate of the protective paths can be ensured after the network fails to work. Consequently, good mapping relationship is realized in networks on a business level and a bottom level with higher requirement on the reliability through the Overlay network, and the different paths provided in the Overlay network can ensure that when the network fails to work, the business can be quickly reversed into the transmission path meeting the quality of service (QoS) of the business, so that the survivability of the network is improved.

Description

technical field [0001] The main purpose of the present invention is to improve the survivability of the IP network, and construct an Overlay network that can provide survivability guarantee by using the path selection algorithm of the overlapping penalty idea, thereby enhancing the survivability of the IP network. Background technique [0002] With the development of communication network technology, various new services are constantly emerging, posing a huge challenge to network transmission requirements. The traditional best-effort IP network cannot guarantee the service required by the new business type, which leads to the inability to meet the QoS of the business and the problem that the tariff cannot be charged according to the business. And after a fault occurs in the network, it is impossible to provide a survivability strategy for distinguishing services. While the existing network guarantees the service QoS requirements, it is at the cost of reducing the network su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/70H04L45/247
Inventor 曲桦赵季红马文涛王力唐睿
Owner XI AN JIAOTONG UNIV
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