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The Research of GMPLS-based OBS Network

Author: HanZuoLei
Tutor: SunQiang
School: Beijing Jiaotong University
Course: Communication and Information System
Keywords: GMPLS OBS Control plane LDP
CLC: TN929.11
Type: Master's thesis
Year: 2009
Downloads: 70
Quote: 1
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Abstract


In recent years,with the increase and the development of optical network at a very high speed.It needs network performance such as network bandwidth, extensibility and adaptability can adapt to new business.At present,IP over WDM is one of the most important focus in networking field,which is envisioned as the promising candidate infrastructural technology for next generation Internet.Optical Burst Switching(OBS) is considered as one of the most promising "IP over WDM" technologies in the next generation all-optical network.In Optical Burst Switching,the granularity of bandwidth is between a bandwidth of wavelength and a bandwidth that meets the need of a grouping transmitting,which is more efficient than of Optical Circuitry Switching and more practical than Grouping Optical Switching.Therefore,the issues refer to the integration and cooperation between OBS and GMPLS should to be resolved if OBS want to be applied in next generation optical networks.GMPLS is developed from MPLS.GMPLS,in which time slots,wavelengths and optical fiber physical ports are used as labels for corresponding data transmit,is the inevitable result of MPLS extending to optical networks.By the extended signaling protocols,routing protocols and new link management protocol,GMPLS satisfies the requests of intelligent optical networks control automatically and signaling,and so provides dynamic networks resources and improves survivability.Specifically,the first chapter introduces the meaning and the background of studying the network.The chapterΠfirstly introduces the basic principles of generalized multi-protocol label switching (GMPLS) and the architecture of the GMPLS plane.Analysis of the key technologies of the GMPLS,such as the signaling protocol,routing protocol,and so on.In the third part of the article,we introduced the basic principles of OBS network and the core/edge nodes.Then proposes the concept of GMPLS-based OBS network and discusses the key technologies of the network.Finally,set up the simulation system of GMPLS-based OBS network to analyze the characteristics of the data transmission and discuss the simulation results.On the whole,there are the following contributions in this paper:1.It proposed a GMPLS-based OBS network model for IP-over-WDM integration,and discussed its network architecture node function and comparisons of GMPLS-based OBS network advantage. 2.The simulation results proved GMPLS-based OBS network is superior to the OBS network.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications > Optical fiber communication
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