Presentation 2006-10-13
Gradually Reconfiguring Virtual Network Topologies based on Estimated Traffic Matrices
Yuichi OHSITA, Takashi MIYAMURA, Shin'ichi ARAKAWA, Shingo ATA, Eiji OKI, Kohei SHIOMOTO, Masayuki MURATA,
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Abstract(in English) In this paper, we present a practical VNT (virtual network topology) reconfiguration method for large-scale IP and Optical networks with traffic matrix estimation considerations. We newly introduce a partial VNT reconfiguration algorithm with multiple transition stages. By dividing the whole VNT transition sequence into multiple transitions, estimation errors are calibrated at each stage by using network state information of prior stages. Because estimation errors are mainly due to less-constraint conditions in the estimated traffic matrix calculation, our approach tries to increase the constraint conditions for traffic matrix estimation by introducing partial reconfiguration, and to relax the impact of estimation errors by limiting the number of optical-paths reconfigured at each stage. We also investigate the effectiveness of our proposal through extensive simulations and clarify the robustness against estimation errors by using partial reconfiguration.
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Keyword(in English) Traffic engineering / GMPLS / Traffic matrix estimation
Paper # PN2006-38
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Committee PN
Conference Date 2006/10/5(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Gradually Reconfiguring Virtual Network Topologies based on Estimated Traffic Matrices
Sub Title (in English)
Keyword(1) Traffic engineering
Keyword(2) GMPLS
Keyword(3) Traffic matrix estimation
1st Author's Name Yuichi OHSITA
1st Author's Affiliation Graduate School of Economics, Osaka University()
2nd Author's Name Takashi MIYAMURA
2nd Author's Affiliation Graduate School of Information Science and Technology, Osaka University
3rd Author's Name Shin'ichi ARAKAWA
3rd Author's Affiliation Graduate School of Engeneering, Osaka City University
4th Author's Name Shingo ATA
4th Author's Affiliation NTT Network Service Systems Laboratories
5th Author's Name Eiji OKI
5th Author's Affiliation Graduate School of Information Science and Technology, Osaka University
6th Author's Name Kohei SHIOMOTO
6th Author's Affiliation Graduate School of Information Science and Technology, Osaka University
7th Author's Name Masayuki MURATA
7th Author's Affiliation Graduate School of Engeneering, Osaka City University
Date 2006-10-13
Paper # PN2006-38
Volume (vol) vol.106
Number (no) 281
Page pp.pp.-
#Pages 6
Date of Issue