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On Resource Sharing and Careful Overbooking for Network Virtualization
Responsible organisation
2009 (English)Conference paper, Published paper (Refereed) PublishedAlternative title
Resursdelning och försiktig överbeläggning inom nätverksvirtualisering (Swedish)
Abstract [en]

Network Virtualization implies the need for sharing network resources. However, exclusive resource allocation to users drives blocking probabilities and cost while potentially leaving precious resources under-utilized in constrained environments. Motivated by these observations, this paper analyzes careful overbooking according to Service Level Agreements that specify desired degrees of availability. Besides of full availability of the requested resources, a second level of limited availability, implying a well-defined reduction of the allocated resource, is taken into account. Particular attention is paid to the gain borderline, representing the possibility of accommodating one extra user beyond exclusive allocation without violating the SLAs. Simple but telling formulae provide insights into requirements for careful overbooking, worst-case capacity reduction factors from full to limited availability, and the conditions under which it is sensible to integrate users with different activity levels.

Abstract [sv]

Nätverksvirtualisering bygger på resursdelning. Att dela resurser mellan för många användare (dvs för hög överbeläggning) leder till prestandaförluster, medan uteslutandet av potentiella användare är problematiskt med. Pappret undersöker rymliga gränser för överbeläggning med tanke på full eller en väldefinerad del av kapaciteten som användaren behöver.

Place, publisher, year, edition, pages
Hoi An, Vietnam, 2009.
Keyword [en]
Network virtualization, resource virtualization, resource sharing, overbooking, gain, availability, Service Level Agreements
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:bth-8029Local ID: oai:bth.se:forskinfo8F802DAB21191858C125760B003E6054OAI: oai:DiVA.org:bth-8029DiVA: diva2:835713
Conference
20th ITC Specialist Seminar on Network Virtualization
Available from: 2012-09-18 Created: 2009-08-07 Last updated: 2015-06-30Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf