Software-defined networking, and the emergence of OpenFlow-capable switches, enables a wide range of new network functionality. However, enhanced programmability inevitably leads to more software faults (or bugs). We believe that tools for testing OpenFlow programs are critical to the success of the new technology. However, the way OpenFlow applications interact with the data plane raises sever...

We propose a flexible and scalable architecture for a network controller platform used for OpenFlow. The OpenFlow technology was proposed as a means for researchers, network service creators, and others to easily design, test, and virtually deploy their innovative ideas in a large network infrastructure, which will accelerate research activities on Future Internet architectures. The technology ...

Currently, there is a strong effort of the research community in rethinking the Internet architecture to cope with its current limitations and support new requirements. Many researchers conclude that there is no one-size-fits-all solution for all of the user and network-provider needs and, thus, advocate for a pluralist network architecture, which allows the coexistence of different protocol st...

 The Evolution of SDN and OpenFlow: A Standards Perspective Jean Tourrilhes; Puneet Sharma; Sujata Banerjee; Justin Pettit HP Laboratories HPL-2014-41 SDN; OpenFlow; Networking SDN is designed to address networking needs that are poorly addressed by existing networks, and therefore the OpenFlow protocol and its specification process are significantly different from most traditional network pro...

Label-based switching schemes, such as MPLS, have been known to be an effective mechanism in overcoming many challenges in core networks. Softwaredefined networking, while a much more recent development, is seen to have the potential to revolutionize networking. But some network researchers, even within the SDN community, believe, for SDN to flourish, it must adopt a more structured model with ...

Topology discovery is one of the most critical tasks of Software-Defined Network (SDN) controllers. Current SDN controllers use the OpenFlow Discovery Protocol (OFDP) as the de-facto protocol for discovering the underlying network topology. In a previous work, we have shown the functional, performance and security limitations of OFDP. In this paper, we introduce and detail a novel protocol call...

The state-of-the-art OpenFlow technology only partially realized SDN vision of abstraction and centralization for packet forwarding in switches. OpenFlow/P4 falls short in implementing middlebox functionalities due to the fundamental limitation in its match-action abstraction. In this paper, we advocate the vision of Software-Defined Middleboxes (SDM) to realize abstraction and centralization f...

OpenFlow technology has recently attracted a lot of attention in the networking research community, as the ability to control the forwarding plane of a switch through software opens new exciting capabilities for protocol designers. Several network testbeds have added OpenFlow-capable switches to their equipment, while at the same time new OpenFlow-centric testbeds have been created. This demo d...

OpenFlow is a protocol that defines an open control channel towards the data plane of multiple switches from different vendors. This allows for a scalable implementation when running a large network. There has been growing interest in OpenFlow within the networking industry, with the promise of new versions and features added by the Open Networking Foundation (ONF). However, there is a lack of ...

The use of computing resources on network is becoming active in the Internet and private networks. OpenFlow/Software-Defined Networking (SDN) is drawing attention as a method to control network virtualization for the cloud computing services and other carrier services. This paper introduces examples of OpenFlow/SDN technologies applied to commercial cloud services. Various activities to expand ...