Presentation 2019-11-21
Study on Reduction of Inconsistency between SDN Controllers Considering Traffic Fluctuation
Masaru Kosugi, Kohei Shiomoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In a large-scale network, centralized control of all network devices with a single SDN controller is undesirable because of controller capacity, expandability, and bottlenecks in the event of a failure. In order to reduce the inconsistency of the state between multiple logically centralized SDN controllers, a method of assigning a switch group where traffic is concentrated to each controller has been proposed. However, the controller cannot respond to load fluctuations, which may increase the synchronization frequency and decrease the network performance. In this paper, we proposed a method for dynamically assigning switches and controllers that requires multiple SDN controllers, focusing on the amount of switch movement of assignment change in addition to the ratio of inconsistency between controllers. A simulation experiment was performed, it was confirmed that a group of switches with a large amount of traffic was assigned to the same controller, and the assignment with a small difference from the previous state could be performed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) SDN / Controller / Switch / Assignment / Simulated Annealing
Paper # ICM2019-23
Date of Issue 2019-11-14 (ICM)

Conference Information
Committee NS / ICM / CQ
Conference Date 2019/11/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Rokkodai 2nd Campus, Kobe Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Network quality, Network measurement/management, Network virtualization, Network service, Blockchain, Security, Network intelligence, etc.
Chair Yoshikatsu Okazaki(NTT) / Kiyohito Yoshihara(KDDI Research) / Hideyuki Shimonishi(NEC)
Vice Chair Akihiro Nakao(Univ. of Tokyo) / Takumi Miyoshi(Shibaura Inst. of Tech.) / Yoichi Sato(NEC) / Jun Okamoto(NTT) / Takefumi Hiraguri(Nippon Inst. of Tech.)
Secretary Akihiro Nakao(Osaka Pref Univ.) / Takumi Miyoshi(NTT) / Yoichi Sato(NTT) / Jun Okamoto(NTT) / Takefumi Hiraguri(Nippon Inst. of Tech.)
Assistant Shinya Kawano(NTT) / Hiroki Nakayama(Bosco) / Chikara Sasaki(KDDI Research) / Yoshiaki Nishikawa(NEC) / Takuto Kimura(NTT)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information and Communication Management / Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Study on Reduction of Inconsistency between SDN Controllers Considering Traffic Fluctuation
Sub Title (in English)
Keyword(1) SDN
Keyword(2) Controller
Keyword(3) Switch
Keyword(4) Assignment
Keyword(5) Simulated Annealing
1st Author's Name Masaru Kosugi
1st Author's Affiliation Tokyo City University(Tokyo City Univ.)
2nd Author's Name Kohei Shiomoto
2nd Author's Affiliation Tokyo City University(Tokyo City Univ.)
Date 2019-11-21
Paper # ICM2019-23
Volume (vol) vol.119
Number (no) ICM-299
Page pp.pp.13-18(ICM),
#Pages 6
Date of Issue 2019-11-14 (ICM)