Large-scale Network Protocol Emulation on Commodity Cloud

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“Large-scale Network Protocol Emulation on Commodity Cloud” by Anirup Dutta and Omprakash Gnawali. In Proceedings of the IEEE Global Communications Conference (GLOBECOM 2014), Dec. 2014.


Network emulation allows us to evaluate network protocol implementations, typically in higher fidelity than simulations. This advantage comes at a cost. Emulation often requires much larger IO or computational resources than simulations. As a result, it is common to see some research projects doing simulations with up to hundred thousand nodes while emulations typically scale up to a few hundred nodes. In this paper, we present CloudNet, a network protocol emulation platform that leverages the commodity cloud computing ser- vice to scale emulations to thousands of nodes. CloudNet uses a light-weight virtualization technique called LXC containers to emulate a single node. The network protocol code and the protocol state for each node is maintained in its respec- tive container. CloudNet then uses properties of the network topology to determine where to place these containers among many physical machines researchers might rent on the cloud service. CloudNet's careful mapping of nodes to the containers makes network performance more predictable and suitable for emulation even on a shared commodity cloud, which were pre- viously thought to be unsuitable for serious network emulation. Through extensive experiments, we establish that CloudNet is scalable to thousand-node networks while providing accurate emulation results.

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BibTeX entry:

   author = {Anirup Dutta and Omprakash Gnawali},
   title = {{Large-scale Network Protocol Emulation on Commodity Cloud}},
   booktitle = {Proceedings of the IEEE Global Communications Conference
	(GLOBECOM 2014)},
   month = dec,
   year = {2014}