Presentation 2019-05-16
Flow Interruption Control for Flow Quality during VNF Instance Migration
Koji Sugisono, Shinya Kawano, Akihiro Okada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Network Function Virtualisation(NFV) enhances performance of virtualized network function instance(VNFI) in virtualized networks by relocating VNFIs according to traffic load of them. Relocation of a VNFI is achieved by synchronizing whole data of the VNFI and entails suspension of the VNFI, which causes bursty interruption of flows the VNFI has processed. Live migration is a relocation procedure which enable to reduce the suspenctiontime. However, when the VNFI is processing large amount of traffic and needs to be relocated to a low-loaded server, the reduction in live migration does not work properly. As a result, all of the flows incur longer butsty drop irrelevantto requirement of the flows, especially in terms of allowable bursty drop time. The extension of the suspension time results in degradation of quality of experience for customers of multimedia contents delivery services, especially when in which contents have scenes where subjects are moving quickly. We propose priority control in terms of allowed interruption time of flows during relocation of a VNFI. Our method reduces the amount of flows input to the VNFI in relocation processes in order to exploit a procedure in Live Migration technology for mitigating suspension of the instance. The reduction is achieved by selecting input flows for the instance based on requirement of the flows, especially in terms of allowed interruption time.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Live Migration / Network Function Virtualization / Virtualized Network Function / Load Balancing
Paper # NS2019-23
Date of Issue 2019-05-09 (NS)

Conference Information
Committee NS
Conference Date 2019/5/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kogakuin Univ. (Shinjuku Campus)
Topics (in Japanese) (See Japanese page)
Topics (in English) High level protocol, Networking technologies (IP and high-layer routing/filtering, Multicast, Quality/Routing control), IP network application technologies (P2P, P4P, Overlay, SIP, NGN), Network system related technologies (System configuration, Interface, Architecture, Hardware/Software/Middleware), Security, Blockchain etc.
Chair Yoshikatsu Okazaki(NTT)
Vice Chair Akihiro Nakao(Univ. of Tokyo)
Secretary Akihiro Nakao(NTT)
Assistant Kenichi Kashibuchi(NTT)

Paper Information
Registration To Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Flow Interruption Control for Flow Quality during VNF Instance Migration
Sub Title (in English)
Keyword(1) Live Migration
Keyword(2) Network Function Virtualization
Keyword(3) Virtualized Network Function
Keyword(4) Load Balancing
1st Author's Name Koji Sugisono
1st Author's Affiliation NTT(NTT)
2nd Author's Name Shinya Kawano
2nd Author's Affiliation NTT(NTT)
3rd Author's Name Akihiro Okada
3rd Author's Affiliation NTT(NTT)
Date 2019-05-16
Paper # NS2019-23
Volume (vol) vol.119
Number (no) NS-29
Page pp.pp.19-24(NS),
#Pages 6
Date of Issue 2019-05-09 (NS)