Bridging router performance and queuing theory
Proceedings of the joint international conference on Measurement and modeling of computer systems
Scalability and accuracy in a large-scale network emulator
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Large-scale virtualization in the Emulab network testbed
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
A network in a laptop: rapid prototyping for software-defined networks
Hotnets-IX Proceedings of the 9th ACM SIGCOMM Workshop on Hot Topics in Networks
Network traffic characteristics of data centers in the wild
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
DieCast: Testing Distributed Systems with an Accurate Scale Model
ACM Transactions on Computer Systems (TOCS)
The flexlab approach to realistic evaluation of networked systems
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
Efficient Gigabit Ethernet Switch Models for Large-Scale Simulation
PADS '10 Proceedings of the 2010 IEEE Workshop on Principles of Advanced and Distributed Simulation
DevoFlow: scaling flow management for high-performance networks
Proceedings of the ACM SIGCOMM 2011 conference
A NICE way to test openflow applications
NSDI'12 Proceedings of the 9th USENIX conference on Networked Systems Design and Implementation
OFLOPS: an open framework for openflow switch evaluation
PAM'12 Proceedings of the 13th international conference on Passive and Active Measurement
Reproducible network experiments using container-based emulation
Proceedings of the 8th international conference on Emerging networking experiments and technologies
Scalable, optimal flow routing in datacenters via local link balancing
Proceedings of the ninth ACM conference on Emerging networking experiments and technologies
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Software defined networks (SDNs) depart from traditional network architectures by explicitly allowing third-party software access to the network's control plane. Thus, SDN protocols such as OpenFlow give network operators the ability to innovate by authoring or buying network controller software independent of the hardware. However, this split design can make planning and designing large SDNs even more challenging than traditional networks. While existing network emulators allow operators to ascertain the behavior of traditional networks when subjected to a given workload, we find that current approaches fail to account for significant vendor-specific artifacts in the SDN switch control path. We benchmark OpenFlow-enabled switches from three vendors and illustrate how differences in their implementation dramatically impact latency and throughput. We present a measurement methodology and emulator extension to reproduce these control-path performance artifacts, restoring the fidelity of emulation.