A load balancing-based unicast sharing multi-layer protection method in optical network

A load balancing and multi-layer protection technology, applied in the network field

Inactive Publication Date: 2011-12-07
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The protection method of the present invention is mainly aimed at the peer-to-peer model

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  • A load balancing-based unicast sharing multi-layer protection method in optical network
  • A load balancing-based unicast sharing multi-layer protection method in optical network
  • A load balancing-based unicast sharing multi-layer protection method in optical network

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Experimental program
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Embodiment Construction

[0118] The load balancing-based unicast shared multilayer protection method in the optical network of the present invention will be described in further detail below with reference to the accompanying drawings.

[0119] 1. Optical network basic platform

[0120] 1 Overview of IP over WDM network and its key technologies

[0121] 1.1WDM technology

[0122] The continuous rapid growth of mobile services, emerging 3G services, and the vigorous development of Internet services such as distance education, video conferencing, video-on-demand, and e-commerce have resulted in explosive growth in data communication services. The explosive growth of business needs puts forward new requirements on the capacity, function and performance of the communication system.

[0123] The easiest way to increase the bandwidth of a communication system is to lay more optical fibers, but it is expensive to lay optical fibers and is limited by physical conditions such as the natural environment, so the scalabil...

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Abstract

The invention provides a load balance-based unicast share multi-layer protection method in an optical fiber network, belonging to the technical field of network communication. The method comprises the steps of setting up a working LSP (Label Switching Path) for a business request, setting up a protection LSP for the business request, and providing WDM (Wavelength Division Multiplex) layer protection for a heavy duty load light path, and releasing resources when the business leaves. According to the invention, the application scope for the traditional unicast share multi-layer protection method can be expanded, and multiple constraint situations are considered when multi-layer protection is carried out; the recovery action and the resource utilization rate are comprehensively considered, the quantity of influenced businesses when physical link failures happen is reduced as many as possible by using load balance on wavelength of a physical link and load balance on bandwidth on the light path.

Description

Technical field [0001] The invention belongs to the field of network technology, and specifically relates to a load balancing-based unicast sharing multilayer protection method in an optical network. Background technique [0002] With the rapid development of the Internet, people have put forward new requirements for the capacity and performance of communication systems. Wavelength Division Multiplexing (WDM) technology can provide huge transmission capacity to meet the bandwidth requirements of Internet services. However, once a network failure occurs, it will cause a lot of business interruption. At the same time, in order to reduce network operating costs and improve bandwidth resource utilization, the transmission network has gradually evolved from the traditional IP over ATM over SDH / SONET over WDM multilayer structure to the IP over WDM two-layer structure, and IP services are directly carried on WDM. Optical network. In order to improve the ability of the IP over WDM ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L12/56H04L12/803
Inventor 王兴伟王宇黄敏
Owner NORTHEASTERN UNIV
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