In-network processing (INP) is being used to cope with the large volume of data streams that need to be analyzed in real-time of data transmission rather than being stored and computed by powerful servers. In this paper, we combine the programmable switch OpenFlow with network virtualization and design the INP platform OFIAS, i.e., OpenFlow In A Slice. With the flexibility of OpenFlow and the s...

The ability to enable multiple virtual networks on common infrastructure with different network architectures has been gaining critical importance recently mainly because this kind of sharing does not incur any additional equipment cost for operators. An aim of our ongoing research is to take pragmatic approach towards infrastructure sharing applying operator differentiation and provide a solut...

We describe a language-centric approach to solving the complex, low-level, and error-prone problem of network control. Specifically, we have designed a domain-specific language called Nettle, embedded in Haskell, that allows programming OpenFlow networks in an elegant, declarative style. Nettle is based on the principles of functional reactive programming (FRP), and as such has both continuous ...

Large-scale 802.11 wireless networks may benefit from Openflow deployment on its Access Points and other forwarding devices combined with centralized management of data flows on an Openflow controller. The reason is that services such as authentication or routing can be provided in an easier way and more efficiently when operating on a full view of the network rather than dealing with distribut...

Software-Defined Networking (SDN) has attracted attention along with the popularization of cloud environment and server virtualization. In SDN, the control plane and the data plane are decoupled so that the logical topology and routing control can be configured dynamically depending on network conditions. To obtain network conditions precisely, a network monitoring mechanism is necessary. In th...

As one of the most popular south-bound protocol of software-defined networking(SDN), OpenFlow decouples the network control from forwarding devices. It offers flexible and scalable functionality for networks. These advantages may cause performance issues since there are performance penalties in terms of packet processing speed. It is important to understand the performance of OpenFlow switches ...

POX is a Python based open source OpenFlow/Software Defined Networking (SDN) Controller. POX is used for faster development and prototyping of new network applications. POX controller comes pre installed with the mininet virtual machine. Using POX controller you can turn dumb openflow devices into hub, switch, load balancer, firewall devices. The POX controller allows easy way to run OpenFlow/S...

Protecting control planes in networking hardware from high rate packets is a critical issue for networks under operation. One common approach for conventional networking hardware is to offload expensive functions onto hard-wired offload engines as ASICs. This approach is inadequate for OpenFlow networks because it restricts a certain amount of flexibility for network control that OpenFlow tries...

OpenFlow assumes a logically centralized controller, which ideally can be physically distributed. However, current deployments rely on a single controller which has major drawbacks including lack of scalability. We present HyperFlow, a distributed event-based control plane for OpenFlow. HyperFlow is logically centralized but physically distributed: it provides scalability while keeping the bene...

SDN and OpenFlow are actively being standardized and deployed. These deployments rely on switches that come from various vendors and differ in terms of their performance and available features. Understanding these differences and basic performance characteristics is essential for ensuring efficient deployments. In this paper we measure, report, and explain the performance characteristics of the...