OpenFlow: enabling innovation in campus networks
ACM SIGCOMM Computer Communication Review
ElasticTree: saving energy in data center networks
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Improving PC-based OpenFlow switching performance
Proceedings of the 6th ACM/IEEE Symposium on Architectures for Networking and Communications Systems
Accelerating OpenFlow switching with network processors
Proceedings of the 5th ACM/IEEE Symposium on Architectures for Networking and Communications Systems
Lightweight DDoS flooding attack detection using NOX/OpenFlow
LCN '10 Proceedings of the 2010 IEEE 35th Conference on Local Computer Networks
An OpenFlow extension for the OMNeT++ INET framework
Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques
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The OpenFlow concept of flow-based forwarding and separation of the control plane from the data plane provides a new flexibility in network innovation. While initially used solely in the research domain, OpenFlow is now finding its way into commercial applications. However, this creates new challenges, as questions of OpenFlow scalability and performance have not yet been answered. This paper is a first step towards that goal. Based on measurements of switching times of current OpenFlow hardware, we derive a basic model for the forwarding speed and blocking probability of an OpenFlow switch combined with an OpenFlow controller and validate it using a simulation. This model can be used to estimate the packet sojourn time and the probability of lost packets in such a system and can give hints to developers and researchers on questions how an OpenFlow architecture will perform given certain parameters.