Artikel in Tagungsband INPROC-2005-26

Bibliograph.
Daten
Maier, Steffen; Herrscher, Daniel; Rothermel, Kurt: On Node Virtualization for Scalable Network Emulation.
In: Proceedings of the 2005 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS ’05), Philadelphia, PA, July 24–28, 2005.
Universität Stuttgart, Fakultät Informatik, Elektrotechnik und Informationstechnik.
S. 917-928, englisch.
Simulation Councils, Inc., 24. Juli 2005.
Artikel in Tagungsband (Konferenz-Beitrag).
CR-Klassif.C.4 (Performance of Systems)
D.4.4 (Operating Systems Communications Management)
D.4.8 (Operating Systems Performance)
I.6.3 (Simulation and Modeling Applications)
Keywordssoftware performance evaluation; network emulation; mobile ad hoc networks; scalability; virtual routing
Kurzfassung

During the development of network protocols and distributed applications, their performance has to be analyzed in appropriate environments. Network emulation testbeds provide a synthetic, configurable network environment for comparative performance measurements of real implementations. Realistic scenarios have to consider hundreds of communicating nodes. Common network emulation approaches limit the number of nodes in a scenario to the number of computers in an emulation testbed. To overcome this limitation, we introduce a virtual node concept for network emulation. The key problem for node virtualization is a transparent, yet efficient separation of node resources. In this paper, we provide a brief survey of candidate node virtualization approaches to facilitate scalable network emulation. Based on the gathered insights, we propose a lightweight virtualization solution to achieve maximum scalability and discuss the main points regarding its implementation. We present extensive evaluations that show the scalability and transparency of our approach in both a traditional wired infrastructure-based, and in a wireless ad hoc network emulation scenario. The measurements indicate that our solution can push the upper limit of emulation scenario sizes by a factor of 20 to 30. Given our emulation testbed consisting of 64 computers, this translates to possible scenario sizes of up to 1920 nodes.

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NET project
Kontakte-mail to Steffen Maier maier@informatik.uni-stuttgart.de
Abteilung(en)Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme
Projekt(e)NET
Eingabedatum18. Mai 2005
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