Control-plane slicing methods in multi-tenant software defined networks

C. Argyropoulos, S. Mastorakis, K. Giotis, G. Androulidakis, D. Kalogeras, V. Maglaris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

In this paper, we focused on two prevailing architectural approaches for control-plane virtualization in multi-tenant OpenFlow-ready SDN domains: The first permits the delegation of a specific, non-overlapping part of the overall flowspace to each tenant OpenFlow controller, exposing him/her the entire substrate topology; the second conceals the substrate topology to tenants by abstracting resources and exposing user-controlled (tenant) Virtual Networks (VNs). For both cases, we propose and analyze three control-plane slicing methods (domain, switch and port-wide), enforced by the management plane, that safeguard control-plane isolation among tenant VNs. Their effectiveness is assessed in terms of control-plane resources (number of flowspace policy rule entries, table lookup times and memory consumption) via measurements on a prototype implementation. To that end, we introduced and prototyped the Flowspace Slicing Policy (FSP) rule engine, an automated mechanism translating substrate management-plane policies into VN mapping control-plane rules. Our experiments, involving thousands of tenants VN requests over a variety of WAN-scale network topologies (e.g. Internet2/OSE3 and GÉANT), demonstrate that the port-wide slicing method is the most efficient in terms of tenant request acceptance ratio, within acceptable control-plane delays and memory consumption.

Original languageEnglish (US)
Title of host publicationProceedings of the 2015 IFIP/IEEE International Symposium on Integrated Network Management, IM 2015
EditorsFilip De Turck, Remi Badonnel, Carlos Raniery P. dos Santos, Jin Xiao, Shingo Ata, Voicu Groza
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages612-618
Number of pages7
ISBN (Electronic)9783901882760
DOIs
StatePublished - Jun 29 2015
Externally publishedYes
Event14th IFIP/IEEE International Symposium on Integrated Network Management, IM 2015 - Ottawa, Canada
Duration: May 11 2015May 15 2015

Publication series

NameProceedings of the 2015 IFIP/IEEE International Symposium on Integrated Network Management, IM 2015

Conference

Conference14th IFIP/IEEE International Symposium on Integrated Network Management, IM 2015
Country/TerritoryCanada
CityOttawa
Period5/11/155/15/15

Keywords

  • Control-Plane Slicing
  • Flowspace Slicing Policy
  • Multi-tenancy
  • Network Virtualization
  • OpenFlow
  • Software Defined Networking (SDN)

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Computer Networks and Communications

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