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Study of BGP for Routing Across OBS Networks

Author: GuoJian
Tutor: LinJinTong
School: Beijing University of Posts and Telecommunications
Course: Physical Electronics
Keywords: OBS edge node core node BGP
CLC: TN929.1
Type: Master's thesis
Year: 2009
Downloads: 47
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Abstract


OBS (Optical Burst Switching) has attracted considerable research attention from both academic and industrial fields because it perfectly combines high-speed optical transmission/switching technology and flexible electronic processing mechanism. As far as routing technology, most of current researches focus on routing protocols inside an OBS network, while few researches on routing data via a plurality of OBS networks are reported.This thesis makes a comprehensive research on BGP (Border Gateway Protocol) and how to use BGP between OBS networks. The thesis includes the following content.1) The feasibility of using BGP for routing across OBS networks is analyzed. It’s planned to use OSPF (Open Shortest-Path First) as IGP (Interior Gateway Protocol) for each OBS AS (Autonomous System) and use BGP as EGP (Exterior Gateway Protocol) between OBS networks. BGP has many advantages, including updating routing information quickly, having high reliability and etc.2) The requirements of BGP for OBS networks are researched. Based on a lot of study on BGP (Border Gateway Protocol) and OBGP (Optical Border Gateway Protocol), extended BGP for OBS network is proposed and introduced in detail. This protocol has the main features of BGP and some new route attributes are added. These new route attributes are extended community attribute, available wavelengths attribute, offset time attribute and burst size attribute.3) According to the design document, C codes are complied for realization of extended BGP. The details for every function module are provided. Simulation results of the realized extended BGP under LINUX operating system are shown.

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