ORAN: OpenFlow Routers for Academic Networks

Rostami, A.; Jungel, Tobias; Koepsel, A.; Woesner, Hagen; Wolisz, Adam

doi:10.1109/hpsr.2012.6260853

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…New SDN switch designs are appearing in a myriad of hardware combinations to efficiently work together with TCAMs, such as SRAM, RLDRAM, DRAM, GPU, FPGA, NPs, CPUs, among other specialized network processors [434], [435], [436], [437], [438], [439]. These early works suggest the need for additional efforts into new hardware architectures for future SDN switching devices.…”

Section: Evolving Switch Designs and Hardware Enhancementsmentioning

confidence: 99%

Software-Defined Networking: A Comprehensive Survey

et al. 2015

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Abstract-The Internet has led to the creation of a digital society, where (almost) everything is connected and is accessible from anywhere. However, despite their widespread adoption, traditional IP networks are complex and very hard to manage. It is both difficult to configure the network according to predefined policies, and to reconfigure it to respond to faults, load and changes. To make matters even more difficult, current networks are also vertically integrated: the control and data planes are bundled together. Software-Defined Networking (SDN) is an emerging paradigm that promises to change this state of affairs, by breaking vertical integration, separating the network's control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network. The separation of concerns introduced between the definition of network policies, their implementation in switching hardware, and the forwarding of traffic, is key to the desired flexibility: by breaking the network control problem into tractable pieces, SDN makes it easier to create and introduce new abstractions in networking, simplifying network management and facilitating network evolution.In this paper we present a comprehensive survey on SDN. We start by introducing the motivation for SDN, explain its main concepts and how it differs from traditional networking, its roots, and the standardization activities regarding this novel paradigm. Next, we present the key building blocks of an SDN infrastructure using a bottom-up, layered approach. We provide an in-depth analysis of the hardware infrastructure, southbound and northbound APIs, network virtualization layers, network operating systems (SDN controllers), network programming languages, and network applications. We also look at cross-layer problems such as debugging and troubleshooting. In an effort to anticipate the future evolution of this new paradigm, we discuss the main ongoing research efforts and challenges of SDN. In particular, we address the design of switches and control platforms -with a focus on aspects such as resiliency, scalability, performance, security and dependability -as well as new opportunities for carrier transport networks and cloud providers. Last but not least, we analyze the position of SDN as a key enabler of a software-defined environment.

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Section: Evolving Switch Designs and Hardware Enhancementsmentioning

confidence: 99%

Software-Defined Networking: A Comprehensive Survey

et al. 2015

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“…Traffic among VMs hosted by the same physical server is kept on the server, while in hairpin switching, all traffic is redirected to the physical switch connected with the server then bounces off. [76] based implementations such as SwitchBlade [77] and ServerSwitch [78], and Advanced Telecommunications Computing Architecture (ATCA) based implementations such as ORAN [79]. Open network hardware platform based switches are the most commonly used to build SDN prototypes in laboratories [80], [81], since they are more flexible than vendor's switches and provide higher throughput than that of software implemented ones.…”

Section: A Switching Devicesmentioning

confidence: 99%

A Survey on Software-Defined Networking

Wei

Wen

Foh

et al. 2015

IEEE Commun. Surv. Tutorials

883

361

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Emerging mega-trends (e.g., mobile, social, cloud, and big data) in information and communication technologies (ICT) are commanding new challenges to future Internet, for which ubiquitous accessibility, high bandwidth, and dynamic management are crucial. However, traditional approaches based on manual configuration of proprietary devices are cumbersome and error-prone, and they cannot fully utilize the capability of physical network infrastructure. Recently, software-defined networking (SDN) has been touted as one of the most promising solutions for future Internet. SDN is characterized by its two distinguished features, including decoupling the control plane from the data plane and providing programmability for network application development. As a result, SDN is positioned to provide more efficient configuration, better performance, and higher flexibility to accommodate innovative network designs. This paper surveys latest developments in this active research area of SDN. We first present a generally accepted definition for SDN with the aforementioned two characteristic features and potential benefits of SDN. We then dwell on its three-layer architecture, including an infrastructure layer, a control layer, and an application layer, and substantiate each layer with existing research efforts and its related research areas. We follow that with an overview of the de facto SDN implementation (i.e., OpenFlow). Finally, we conclude this survey paper with some suggested open research challenges.

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“…OpenFlow switch implementation -based on ATCA platform with architecture consisting of a data path (i.e., fast path) for packet forwarding and a control plane (i.e., slow path) for management and signaling, is presented in [69]. Data plane elements are implemented using the Broadcom Ethernet chipset on the AT8404 card that supports header parsing, packet classification, and frame forwarding by header field content.…”

Section: ) Np-based Implementationsmentioning

confidence: 99%

A Survey on Data Plane Flexibility and Programmability in Software-Defined Networking

et al. 2019

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Software-defined networking (SDN) attracts the attention of the research community in recent years, as evidenced by a large number of survey and review papers. The architecture of SDN clearly recognizes three planes: application, control, and data plane. The application plane executes network applications; control plane regulates the rules for the entire network based on the requests generated by network applications; and based on the set rules, the controller configures the switches in the data plane. The role of the switch in the data plane is to simply forward packets based on the instructions given by the controller. By analyzing SDN-related research papers, it is observed that research, from the very beginning, is insufficiently focused on the data plane. Therefore, this paper gives a comprehensive overview of the data plane survey with particular emphasis on the problem of programmability and flexibility. The first part of the survey is dedicated to the evaluation of actual data plane architectures through several definitions and aspects of data plane flexibility and programmability. Then, an overview of SDN-related research was presented with the aim of identifying key factors influencing the gradual deviation from the original data plane architectures given with ForCES and OpenFlow specifications, which we called the data plane evolution. By establishing a correlation between the treated problem and the problem-solving approaches, the limitations of ForCES and OpenFlow data plane architectures were identified. Based on identified limitations, a generalization of approaches to addressing the problem of data plane flexibility and programmability is made. By examining generalized approaches, open issues have been identified, establishing the grounds for future research directions proposal.

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ORAN: OpenFlow Routers for Academic Networks

Cited by 10 publications

References 5 publications

Software-Defined Networking: A Comprehensive Survey

Software-Defined Networking: A Comprehensive Survey

A Survey on Software-Defined Networking

A Survey on Data Plane Flexibility and Programmability in Software-Defined Networking

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