An automated system for emulated network experimentation

Knight, Simon; Nguyen, Hung; Maennel, Olaf; Phillips, Iain; Falkner, Nickolas; Bush, Randy; Roughan, Matthew

doi:10.1145/2535372.2535378

Cited by 9 publications

(9 citation statements)

References 21 publications

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“…In our experience, given the particular nature of the project, it is possible to sustain the community even with these kinds of activities, provided that the latest published release is not affected by flaws that impair its usage and that users can feel the availability of a support when needed. Besides GitHub forks, the existence of third party independently maintained 'custom' versions of Netkit and of other related projects confirms this (see, e.g., [6,57,58]).…”

Section: Growing a Community Of Usersmentioning

confidence: 67%

Netkit: network emulation for education

Pizzonia

Rimondini

2014

Softw Pract Exp

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Summary In the era of virtualization, virtual networking plays an important role. Besides production use, virtual networking can be effectively adopted in many other contexts where accurate emulation of functionalities is important, like testing before deployment, evaluation of what‐if scenarios, research, and, increasingly, didactics. In this paper, we describe our 10‐year experience in designing, implementing, using, and maintaining Netkit, an environment for simple, inexpensive, and lightweight network emulation targeted at didactics. We analyze the peculiar requirements in this context and discuss how the architecture chosen for Netkit is tailored to fulfill them. We show that Netkit is particularly well suited for a quick preparation of complex network scenarios comprising a wide range of networking technologies. These scenarios can be specified using configuration languages that are similar to those used on real devices and, once set up, can be easily distributed via email or published on the Web. Netkit comes with a rich set of ready‐to‐use pre‐configured networks, accompanied by lecture slides that enable users to immediately experiment with specific case studies. To complete the picture, we report our experience in supporting and fostering the growth of the community of users revolving around Netkit: more than 15 educational institutions worldwide take advantage of Netkit, allowing teachers and students to practice with realistic networks without the need of expensive laboratories. We also detail how we profitably use Netkit within advanced academic‐level networking courses and related examinations at the Roma Tre University. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Growing a Community Of Usersmentioning

confidence: 67%

Netkit: network emulation for education

Pizzonia

Rimondini

2014

Softw Pract Exp

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“…The deployment of RPKI started in 2011. Several looking glasses and tools exist [15,17,21,24,29,31] to inspect the current state of deployment or to do experiments, but up until now only few publications studied the current state of deployment in detail. [14,32] analyze the RPKI validation outcome of entire BGP tables trying to better understand invalid BGP announcements.…”

Section: Related Workmentioning

confidence: 99%

RiPKI

Wählisch

Schmidt

et al. 2015

Proceedings of the 14th ACM Workshop on Hot Topics in Networks

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Web content delivery is one of the most important services on the Internet. Access to websites is typically secured via TLS. However, this security model does not account for prefix hijacking on the network layer, which may lead to traffic blackholing or transparent interception. Thus, to achieve comprehensive security and service availability, additional protective mechanisms are necessary such as the RPKI, a recently deployed Resource Public Key Infrastructure to prevent hijacking of traffic by networks. This paper argues two positions. First, that modern web hosting practices make route protection challenging due to the propensity to spread servers across many different networks, often with unpredictable client redirection strategies; and, second, that we need a better understanding why protection mechanisms are not deployed. To initiate this, we empirically explore the relationship between web hosting infrastructure and RPKI deployment. Perversely, we find that less popular websites are more likely to be secured than the prominent sites. Worryingly, we find many large-scale CDNs do not support RPKI, thus making their customers vulnerable. This leads us to explore business reasons why operators are hesitant to deploy RPKI, which may help to guide future research on improving Internet security.

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“…It has three core components: a simulation engine built on Openstack; a configuration engine, based on AutoNetkit [6]; and a User Interface for the design and operation of the simulated environment. The components can also be driven from third-party scripts via an XML-based topology file format, and REST APIs.…”

Section: System Overviewmentioning

confidence: 99%

Virl

Obstfeld

Knight

Kern

et al. 2014

Proceedings of the 2014 ACM Conference on SIGCOMM

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The increasing demand to provide new network services in a timely and efficient manner is driving the need to design, test and deploy networks quickly and consistently. Testing and verifying at scale is a challenge: network equipment is expensive, requires space, power and cooling, and there is never enough test equipment for everyone who wants to use it! Network virtualization technologies enable a flexible environment for educators, researchers, and operators to create functional models of current, planned, or theoretical networks.This demonstration will show VIRL -the Virtual Internet Routing Lab -a platform that can be used for network change validation, training, education, research, or networkaware applications development. The platform combines network virtualization technologies with virtual machines (VMs) running open-source and commercial operating systems; VM orchestration capabilities; a context-aware configuration engine; and an extensible data-collection framework. The system simplifies the process to create both simple and complex environments, run simulations, and collect measurement data.

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An automated system for emulated network experimentation

Cited by 9 publications

References 21 publications

Netkit: network emulation for education

Netkit: network emulation for education

RiPKI

Virl

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