Software-Defined Networking (SDN), which separates the control plane and data plane, is a promising new network architecture for the Future Internet. OpenFlow is the de facto standard which defines the communication protocol between the controller and switches. The most challenging issue in OpenFlow switches is the lookup of multiple OpenFlow tables. The lookup of OpenFlow tables is so complica...

Since its initial proposal in 2008, OpenFlow has evolved to become today’s main enabler of Software-Defined Networking. OpenFlow specifies operations for network forwarding devices and a communication protocol between data and control planes. Although not primarily designed as a traffic measurement tool, many works have proposed to use measured data from OpenFlow to support, e.g., traffic engin...

In this article, we use the EstiNet OpenFlow network simulator and emulator to perform functional validation and performance evaluation of the widely-used NOX OpenFlow controller. EstiNet uses an unique kernel reentering simulation methodology to enable real applications to run on nodes in its simulated network. As a result, without any modification, the real NOX OpenFlow controller readily run...

The OpenFlow protocol allows production networking environments such as campus networks, metropolitan networks or R&D networks, to be used as experimental infrastructure hosting, future internet architectures, softwares and protocols, in isolation to the production traffic. During rollout, one practical problem arises with legacy switches that do not support the OpenFlow protocol and need to be...

OpenFlow is an open standard that has gained tremendous interest in the last few years within the network community. It is an embodiment of the software-defined networking paradigm, in which higher-level flow routing decisions are derived from a control layer that, unlike classic network switch implementations, is separated from the data handling layer. The central attraction to this paradigm i...

this paper studies congestion control issue in data center networks and proposes a potential solution based on OpenFlow protocol. A main feature of the emerging data center networks is their performance in hosting different cloud applications and services. Since congestion management is necessary to effectively utilize numerous data center applications, in this paper we present an efficient met...

We explain the notion of software-defined networking (SDN), whose southbound interface may be implemented by the OpenFlow protocol. We describe the operation of OpenFlow and summarize the features of specification versions 1.0–1.4. We give an overview of existing SDN-based applications grouped by topic areas. Finally, we point out architectural design choices for SDN using OpenFlow and discuss ...

Software-defined networking (SDN) enables the flexible and dynamic configuration of a network, and OpenFlow is one practical SDN implementation. Although it has been widely deployed in actual environments, it can cause fatal flows. In this paper, we consolidate the security threats to OpenFlow mentioned in previous work and introduce a new security checksheet that includes risk assessment metho...

The paper presents a survey on OpenFlow related technologies that have been proposed as a means for researchers, network service creators, and others to easily design, test, and deploy their innovative ideas in experimental or production networks to accelerate research activities on network technologies. Rather than having programmability within each network node, separated OpenFlow controllers...

OpenFlow is a protocol-implementing Software Defined Networking, a new networking paradigm, which segregates packet forwarding and accounting from the routing decisions and advanced protocols. This segregation increases agility and flexibility and reduces operational expenses of the networking infrastructure. Despite the apparent benefits, many companies are unable to upgrade their networks to ...