Presentation 2011-06-24
Study on Practicality of Fault-Resilient Link Bandwidth Design : Reduction on Computation Time and Applization to Input Values including any Errors
Ryuta SUGIYAMA, Takashi MIYAMURA, Yoshihiko UEMATSU, Kohei SHIOMOTO,
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Abstract(in English) This paper reports the study on the practicality of the fault-resilient link bandwidth design in IP networks: the reduction on computation time for large networks and the applization on input values including any errors. Our previous study achieved the effective fault-resilient link bandwidth design by using the linear programming (LP), which uses the link bandwidth load instead of traffic matrices as one of input values. However, this previous method has two problems. One is that the computation time increases rapidly as the network size increases and the other is that previous method cannot handle the input value including errors. In this study, we propose a speeding-up method at by the reduction of constraints and variables that are expected not to influence the LP computation result, and a method for the applization to the input value including any errors by modifying the constraints in the LP used in the previous method so that variables can meet the constraints. By simulation, it is shown that the each proposed method solves each problem effectively and practically.
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Keyword(in English) IP Networks / Bandwidth Design / Fault-Resilient / Large-Scale / Measurement Error
Paper # NS2011-47
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Committee NS
Conference Date 2011/6/16(1days)
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Registration To Network Systems(NS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Study on Practicality of Fault-Resilient Link Bandwidth Design : Reduction on Computation Time and Applization to Input Values including any Errors
Sub Title (in English)
Keyword(1) IP Networks
Keyword(2) Bandwidth Design
Keyword(3) Fault-Resilient
Keyword(4) Large-Scale
Keyword(5) Measurement Error
1st Author's Name Ryuta SUGIYAMA
1st Author's Affiliation NTT Network Service Systems Laboratories, NTT Corporation()
2nd Author's Name Takashi MIYAMURA
2nd Author's Affiliation NTT Network Service Systems Laboratories, NTT Corporation
3rd Author's Name Yoshihiko UEMATSU
3rd Author's Affiliation NTT Network Service Systems Laboratories, NTT Corporation
4th Author's Name Kohei SHIOMOTO
4th Author's Affiliation NTT Network Service Systems Laboratories, NTT Corporation
Date 2011-06-24
Paper # NS2011-47
Volume (vol) vol.111
Number (no) 91
Page pp.pp.-
#Pages 6
Date of Issue