Presentation 2002/4/12
Management of Logical Topologies for Dynamically Changing Traffic in Reliable IP over WDM Networks
Shin'ichi ARAKAWA, Shinya ISHIDA, Masayuki MURATA,
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Abstract(in English) A protection method is one of most promising methods for building reliable IP over WDM networks. To construct the IP over WDM network with protection, protection paths as well as primary paths are set up to be embedded within a logical topology. However, many conventional approaches assume that the traffic demand is known a priori. It is possible that against the changing traffic volume/pattern, we apply the design method based on the current traffic characteristics, and reconfigure the logical topology. However, during the reconfiguration process, releasing the wavelength resources allocated for elder lightpaths causes traffic loss, to this paper, we consider a new approach, called an incremental capacity dimensioning approach, which consists of three steps for designing the logical topology: an initial phase, an incremental phase, and readjustment phase. By our approach, the logical topology can be adjusted according to the changed traffic demands. Through numerical examples we show that she algorithm takes a much smaller number of traffic loss operations during reconfiguration of the logical topology.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IP over WDM / Reconfiguring / Optimization Problem / Wavelength Division Multiplexing / Protection method / Network Management / Reconfiguration
Paper # DC2002-2
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Committee DC
Conference Date 2002/4/12(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Management of Logical Topologies for Dynamically Changing Traffic in Reliable IP over WDM Networks
Sub Title (in English)
Keyword(1) IP over WDM
Keyword(2) Reconfiguring
Keyword(3) Optimization Problem
Keyword(4) Wavelength Division Multiplexing
Keyword(5) Protection method
Keyword(6) Network Management
Keyword(7) Reconfiguration
1st Author's Name Shin'ichi ARAKAWA
1st Author's Affiliation Graduate School of Economics, Osaka University()
2nd Author's Name Shinya ISHIDA
2nd Author's Affiliation Graduate School of Information Science and Technology, Osaka University
3rd Author's Name Masayuki MURATA
3rd Author's Affiliation Cybermedia Center, Osaka University
Date 2002/4/12
Paper # DC2002-2
Volume (vol) vol.102
Number (no) 28
Page pp.pp.-
#Pages 6
Date of Issue