A dynamic routing and wavelength assignment algorithm in IP/MPLS over WDM networks

Author

Rongxi, He ; Zhizhong, Zhung ; Lemin, Li ; Sheng, Wung

Author_Institution

Nat. Key Lab of Broadband Opt. Fiber Transmission & Commun. Networks, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2002

fDate

29 June-1 July 2002

Firstpage

855

Abstract

The paper investigates the integrated routing (IR) algorithm in IP/MPLS over WDM networks, and presents a simple dynamic IR scheme, bandwidth defragmenting method (BDM). It makes use of the statistical information of link-state and resource availability to determine whether to route an arriving label switched path (LSP) request over the existing topology or to open new wavelength paths. The IR algorithm based on BDM can reduce the number of bandwidth fragments and increase the utility of network resource. Simulation results show that the scheme can improve the performance of the network significantly.

Keywords

graph theory; multiprotocol label switching; network topology; optical fibre networks; resource allocation; routing protocols; statistical analysis; wavelength division multiplexing; IP/MPLS; LSP; RWA algorithm; WDM networks; bandwidth defragmenting method; dynamic routing; label switched path; layered-graph model; link-state; network topology; resource availability; routing and wavelength assignment algorithm; routing protocol; statistical information; Bandwidth; Intelligent networks; Multiprotocol label switching; Network topology; Telecommunication traffic; Traffic control; WDM networks; Wavelength assignment; Wavelength division multiplexing; Wavelength routing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on

Print_ISBN

0-7803-7547-5

Type

conf

DOI

10.1109/ICCCAS.2002.1180747

Filename

1180747