NDLI: Network-resource isolation for virtualization nodes

Content Provider	IEEE Xplore Digital Library
Author	Kanada, Y. Shiraishi, K. Nakao, A.
Copyright Year	2012
Description	Author affiliation: Network Solution Division, Hitachi, Ltd (Shiraishi, K.) \|\| The University of Tokyo (Nakao, A.) \|\| Central Research Laboratory, Hitachi, Ltd (Kanada, Y.)
Abstract	One key requirement for achieving network virtualization is resource isolation among slices (virtual networks), that is, to avoid interferences between slices of resources. This paper proposes two methods, per-slice shaping and per-link policing for network-resource isolation (NRI) in terms of bandwidth and delay. These methods use traffic shaping and traffic policing, which are widely-used traffic control methods for guaranteeing QoS. Per-slice shaping utilizes weighted fair queuing (WFQ) usually applied to a finegrained flow such as a flow from a specific server application to a user. Since the WFQ for fine-grained flows requires many queues, it may not scale to a large number of slices with a large number of virtual nodes. Considering that the purpose of NRI is not thoroughly guaranteeing QoS but avoiding interferences between slices, we believe per-slice shaping suffices our objective. In contrast, per-link policing uses traffic policing per virtual link. It requires less resource and achieves less strict isolation between hundreds of slices. Our results show that both methods perform NRI well but the performance of the former is better in terms of delay. Accordingly, per-slice shaping is effective for delay-sensitive services while per-link policing may be sufficiently used for the other types of services.
Starting Page	000776
Ending Page	000779
File Size	146069
Page Count	4
File Format	PDF
ISBN	9781467327121
ISSN	15301346
e-ISBN	9781467327138
e-ISBN	9781467327114
DOI	10.1109/ISCC.2012.6249393
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-01
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Delay Quality of service Interference Resource management Decoding Computers
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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