An efficient virtual topology design and traffic engineering scheme for IP/WDM networks
Author
Şengezer, Namık
Karasan, Ezhan
Date
2007Source Title
Proceedings of the 11th International IFIP TC6 Conference, ONDM 2007
Print ISSN
0302-9743
Publisher
Springer
Pages
319 - 328
Language
English
Type
Conference PaperItem Usage Stats
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Abstract
We propose an online traffic engineering (TE) scheme for efficient routing of bandwidth guaranteed connections on a Multiprotocol label switching (MPLS)/wavelength division multiplexing (WDM) network with a traffic pattern varying with the time of day. We first consider the problem of designing the WDM virtual topology utilizing multi-hour statistical traffic pattern. After presenting an effective solution to this offline problem, we introduce a Dynamic tRaffic Engineering AlgorithM (DREAM) that makes use of the bandwidth update and rerouting of the label switched paths (LSPs). The performance of DREAM is compared with commonly used online TE schemes and it is shown to be superior in terms of blocked traffic ratio.
Keywords
Dynamic routingLSP
MPLS
Traffic engineering
Virtual topology design
Fiber optic networks
Network protocols
Online systems
Problem solving
Telecommunication traffic
Bandwidth
Design
Topology
Blocked traffic ratio
Wavelength division multiplexing