Seamless interworking of SDN and IP

Lin, Pingping; Hart, Jonathan; Krishnaswamy, Umesh; Murakami, T.; Kobayashi, Masayoshi; Al-Shabibi, Ali; Wang, Kuang-Ching; Bi, Jun

doi:10.1145/2486001.2491703

Cited by 41 publications

(13 citation statements)

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“…Another solution using BGP is SDN-IP [35] where seamless interconnection between SDN domain and traditional domain is focused. SDN-IP Peering application (having BGP Route Module and Proactive Flow Installer Module) runs on top of Network Operating System.…”

Section: B Interaction Between Sdn and Traditional Network (Westboumentioning

confidence: 99%

A comprehensive survey of interface protocols for software defined networks

Latif

Sharif

et al. 2020

Journal of Network and Computer Applications

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Software Defined Networks has seen tremendous growth and deployment in different types of networks. Compared to traditional networks it decouples the control logic from network layer devices, and centralizes it for efficient traffic forwarding and flow management across the domain. This multilayered architecture has data forwarding devices at the bottom in data plane, which are programmed by controllers in the control plane. The high level application or management plane interacts with control layer to program the whole network and enforce different policies. The interaction among these layers is done through interfaces which work as communication/programming protocols. In this survey, we present a comprehensive study of such interfaces available for southbound, northbound, and east/westbound communication. We have classified each type into different categories based on their properties and capabilities. Virtualization of networks devices is a common practice in Software Defined Networks. This paper also analyzes interface solution which work with different virtualization schemes. In addition, the paper highlights a number of short term and long term research challenges and open issues related to SDN interfaces.

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Section: B Interaction Between Sdn and Traditional Network (Westboumentioning

confidence: 99%

A comprehensive survey of interface protocols for software defined networks

Latif

Sharif

et al. 2020

Journal of Network and Computer Applications

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“…Inter-domain SDN is a new research area that attracts increasing attention [6], [7], [11], [8], [9], [10], [12]. In [6] authors propose and implement SDX, a software-defined component for IXPs, which increases the capabilities on routing control.…”

Section: Related Workmentioning

confidence: 99%

“…Another IXP-based system that enables novel services for establishing QoS route paths is described in [7]. In [11] a solution for incremental deployment of inter-domain SDN, which is seamless to traditional IP networks, is proposed, and [8] based methodology for decoupling BGP policy control from routing. [9] proposes an SDN-based architecture to enhance inter-domain routing, and [10] proposes an component to enable inter-domain SDN.…”

Section: Related Workmentioning

confidence: 99%

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Can SDN accelerate BGP convergence?— A performance analysis of inter-domain routing centralization

Sermpezis

Dimitropoulos

2017

2017 IFIP Networking Conference (IFIP Networking) and Workshops

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The Internet is composed of Autonomous Systems (ASes) or domains, i.e., networks belonging to different administrative entities. Routing between domains/ASes is realised in a distributed way, over the Border Gateway Protocol (BGP). Despite its global adoption, BGP has several shortcomings, like slow convergence after routing changes, which can cause packet losses and interrupt communication even for several minutes. To accelerate convergence, inter-domain routing centralization approaches, based on Software Defined Networking (SDN), have been recently proposed. Initial studies show that these approaches can significantly improve performance and routing control over BGP. In this paper, we complement existing system-oriented works, by analytically studying the gains of inter-domain SDN. We propose a probabilistic framework to analyse the effects of centralization on the inter-domain routing performance. We derive bounds for the time needed to establish data plane connectivity between ASes after a routing change, as well as predictions for the control-plane convergence time. Our results provide useful insights (e.g., related to the penetration of SDN in the Internet) that can facilitate future research. We discuss applications of our results, and demonstrate the gains through simulations on the Internet AS-topology. • We propose a model (Section II) and methodology (Sections III and IV) for the performance analysis of interdomain routing centralization. To our best knowledge, we are the first to employ a probabilistic approach to study the performance of inter-domain SDN. • We analyse the time that the network needs to establish connectivity after a routing change. In particular, we derive upper and lower bounds for the time needed to achieve data-plane connectivity between two ASes (Section III), and exact expressions and approximations for the time till control-plane convergence over the entire network (Section IV). Our results are given by closed-form expressions, as a function of network parameters, like network size, path lengths, and number of SDN nodes. • Based on the theoretical expressions, as well as on extensive simulation results, we provide insights for potential gains of centralization, inter-domain SDN deployment strategies, network economics, etc.We believe that our study can be useful in a number of directions. Research in inter-domain SDN can be accelerated

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“…Cardigan realized a distributed router based on RouteFlow concepts and deployed it in a public Internet exchange, showing the applicability of SDN/OpenFlow in a production context. The "SDN-IP" solution proposed in [19] follows similar principles. It is based on the ONOS SDN controller [20] and it also interacts with external domains using BGP.…”

Section: Related Workmentioning

confidence: 99%