p010-bavier(1)

p010-bavier(1) - In VINI Veritas: Realistic and Controlled...

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In VINI Veritas: Realistic and Controlled Network Experimentation Andy Bavier * , Nick Feamster , Mark Huang * , Larry Peterson * , and Jennifer Rexford * * Princeton University Georgia Tech ABSTRACT This paper describes VINI , a virtual network infrastructure that al- lows network researchers to evaluate their protocols and services in a realistic environment that also provides a high degree of con- trol over network conditions. VINI allows researchers to deploy and evaluate their ideas with real routing software, traffic loads, and network events. To provide researchers flexibility in designing their experiments, VINI supports simultaneous experiments with arbitrary network topologies on a shared physical infrastructure. This paper tackles the following important design question: What set of concepts and techniques facilitate flexible, realistic, and con- trolled experimentation ( e.g. , multiple topologies and the ability to tweak routing algorithms) on a fixed physical infrastructure? We first present VINI’s high-level design and the challenges of virtual- izing a single network. We then present PL-VINI , an implementa- tion of VINI on PlanetLab, running the “Internet In a Slice”. Our evaluation of PL-VINI shows that it provides a realistic and con- trolled environment for evaluating new protocols and services. Categories and Subject Descriptors C.2.6 [ Computer Communication Networks ]: Internetworking; C.2.1 [ Computer Communication Networks ]: Network Archi- tecture and Design General Terms Design, Experimentation, Measurement, Performance Keywords Internet, architecture, virtualization, routing, experimentation 1. Introduction Researchers continually propose new protocols and services de- signed to improve the Internet’s performance, reliability, and scal- ability. Testing these new ideas under realistic network conditions is a critical step for evaluating their merits and, ultimately, for de- ploying them in practice. Unfortunately, evaluating new ideas in operational networks is difficult, because of the need to convince equipment vendors and network operators to deploy the solution. Accordingly, researchers are faced with the option of evaluating Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. SIGCOMM’06, September 11–15, 2006, Pisa, Italy. Copyright 2006 ACM 1-59593-308-5/06/0009 . ..$5.00. their proposals via simulations, driven either by synthetic models
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p010-bavier(1) - In VINI Veritas: Realistic and Controlled...

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