Performance issues and solutions in SDN-based data center: a survey

Shirmarz, Alireza; Ghaffari, Ali

doi:10.1007/s11227-020-03180-7

Cited by 89 publications

(42 citation statements)

References 125 publications

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“…Area refers to a region that can be controlled by a single SDN controller. They have proposed this hierarchical design to solve two main problems, the growth of the network in the future and the stretch path problem [19], [23], [25]. This hierarchical control plane architecture of SDN is called Orion design [24].…”

Section: ) Complexitymentioning

confidence: 99%

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Software Defined Network-Based Management for Enhanced 5G Network Services

2020

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Due to the fast development in communication technology and the emerging usage of Internet of Things (IoT) devices that produce a huge amount of data, the fifth generation (5G) mobile network is introduced to support this development. This mobile network can provide many advanced communication features in cellular phones. But unfortunately, this technology faces many challenges. One of its defective challenges is the management of a massive number of devices running different services, so Software Defined Network (SDN) is proposed as a key technology to overcome this drawback. SDN architecture provides higher flexibility, scalability, cost-effectiveness, and energy efficiency in 5G mobile networks. There are usually different architectures for the SDN control plane. We study some of these architectures, and we conciliate the usage of Logically Centralized-Physically Distributed (LC-PD) controller management architecture in 5G networks. This architecture enables providing higher throughput, and lower latency compared to other control plane architectures. In this paper, we focus on the demonstration that the LC-PD control plane architecture improves communication efficiency and the Quality of Services (QoS) of running internet services in the 5G mobile network. We use the Mininet-WIFI emulator in our simulation tests. Our conducted simulations show that employing the LC-PD control plane architecture in 5G networks enhances the QoS of Internet services compared to other SDN implementations. INDEX TERMS Software defined network, 5G networks, quality of service, network management, controller placement.

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Section: ) Complexitymentioning

confidence: 99%

“…switches and routers) into dummy devices with no intelligence functions such as routing, major processing, and management [8]. All these functions are handled by the brain of the network, the SDN controller unit [12], [13], [17], [19].…”

Section: Introductionmentioning

confidence: 99%

Software Defined Network-Based Management for Enhanced 5G Network Services

2020

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“…Also, energy consumption is fundamental to cloudbased data centers. As mentioned in [28], switches are the most energy consumer that should be controlled. Since the SDN technology enables the ability of allocating resource by a need, it's worth studying to reduce energy consumption in DCN using SDN technology, e.g.…”

Section: Introductionmentioning

confidence: 99%

cRetor: An SDN-Based Routing Scheme for Data Centers With Regular Topologies

et al. 2020

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The blooming of cloud computing leads to the rapid expansion of data center networks (DCN). Conventional link state routing algorithms like OSPF are widely adopted in data center networks, however, those routing algorithms bring great control overheads and long convergence time. Recently, topology-aware routing methods are considered to be efficient especially in data center networks with regular topologies. Lots of topology-aware routing methods (e.g., Fat-Tree and BCube) have been proposed for specific data center network topologies. This paper first proposes a formalized method to describe regular topologies and a regular Topology Description Language (TPDL) based on this method. TPDL is well designed to accurately define regular network topologies in a clear way leveraging their regularities. Based on the Software-Defined Networking (SDN) technology, this paper also proposes a novel topology-aware routing scheme: cRetor (controllerside REgular TOpology Routing scheme). Different from other topology-aware routing methods, cRetor is a TPDL-based general routing method, which means it is expected to work on different kinds of regular topologies. In this scheme, TDPL files are used as a priori knowledge to build an initial topology in the SDN controllers, which eliminates the process of topology discovery via Link Layer Discovery Protocol (LLDP) and hence relieves the bandwidth and processing burdens on controllers. Besides, we also apply the A-star algorithm to SDN controllers to speed up the routing selection, where TPDL's distance formulas act as the heuristic function. The experimental results show that cRetor outperforms LLDP-based SDN, OSPF and DCell in routing calculation performance, convergence speed, routing overheads and fault tolerance.

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“…Questões como eficiência energética e performance têm sido tópicos amplamente pesquisados pela comunidade científica. Vários trabalhos propõem soluções para aumentar a banda e diminuir a latência das redes, bem como realizar uso eficiente de recursos [17], [3]. Em um sistema de engenharia de tráfego, balanceamento de carga e eficiência energética se caracterizam como objetivos conflitantes.…”

Section: Introductionunclassified

Uma abordagem multiobjetivo para definição de rotas em Redes Definidas por Software (SDN)

Assis¹,

Errico²

2020

Anais De XXXVIII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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Performance issues and solutions in SDN-based data center: a survey

Cited by 89 publications

References 125 publications

Software Defined Network-Based Management for Enhanced 5G Network Services

Software Defined Network-Based Management for Enhanced 5G Network Services

cRetor: An SDN-Based Routing Scheme for Data Centers With Regular Topologies

Uma abordagem multiobjetivo para definição de rotas em Redes Definidas por Software (SDN)

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