Flows Reduction Scheme Using Two MPLS Tags in Software-Defined Network

Kitsuwan, Nattapong; Ba, Seydou; Oki, Eiji; Kurimoto, Takashi; Urushidani, Shigeo

doi:10.1109/access.2017.2725139

Cited by 12 publications

(11 citation statements)

References 12 publications

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“…In our opinion, use of a single node as an entrance to each region increases probability of a congestion. We cannot qualitatively compare this mechanism with our solution because paper [28] does not introduce any multipath transmission method. The next advantage of our mechanism present contrary to [28] is a lack of communication between switches and a controller for every new flow installation (excluding the extension presented is Subsection III-C).…”

Section: Discussionmentioning

confidence: 98%

“…To be consistent with our terminology, we use the 'edge' notion for the nodes where host networks are connected. When a network posessing 100 edge nodes is divided into 10 regions, each with 10 edge nodes, the maximum number of flow entries in a core node is 20 for mechanism proposed in [28]. Such the number is valid when only one node is a communication point for other regions.…”

Section: Discussionmentioning

confidence: 99%

“…This mechanism offers a better flow scalability than our proposition and FAMTAR. In [28], the authors use an optimization task for selection of a number of regions. 10 is the optimal value for regions, resulting in a lower number of flow table entries for the proposed scenario.…”

Section: Discussionmentioning

confidence: 99%

“…The next advantage of our mechanism present contrary to [28] is a lack of communication between switches and a controller for every new flow installation (excluding the extension presented is Subsection III-C). The compared mechanism [28] requires a reactive installation of each new flow in edge nodes.…”

Section: Discussionmentioning

confidence: 99%

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MPLS-based reduction of flow table entries in SDN switches supporting multipath transmission

Duliński¹,

Rzym²,

Chołda³

2020

Computer Communications

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In the paper, a new mechanism for Software-Defined Networking (SDN) flow aggregation accompanied with multipath transmission is proposed. The aggregation results in a low number of flow entries in core switches. This type of scalability improvement of flow processing is obtained thanks to application of the procedure based on introduction of centrally managed MPLS label distribution performed by an SDN controller. Moreover, multipath transmission improves network resource utilization.The proposed mechanism does not involve definition of new protocols. It neither needs application of legacy signalling protocols. Only simple modifications of the existing solutions, assured by flexibility of OpenFlow, are necessary. Additionally, the mechanism significantly reduces communication between the controller and switches, thus enabling a fine-grained flow-level control. Furthermore, the proposed solution can be incrementally deployed in legacy networks. The simulations show that a number of flow entries in core switches can be reduced as much as of 96%, while the overall network traffic is increased by about 32%. Moreover, the number of OpenFlow messages is reduced by about 98%.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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MPLS-based reduction of flow table entries in SDN switches supporting multipath transmission

Duliński¹,

Rzym²,

Chołda³

2020

Computer Communications

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“…Due to the passivity of current IP networks, a novel routing protocol can take five to ten years to be completely produced, estimated, and used. Furthermore, a clean-slate plan to change the Internet architecture 20 (e.g., replacing IP) is viewed as a daunting mission not possible in practice [3,4].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Traffic Engineering in Software Defined Networking

Alkasassbeh¹,

Al‐Naymat²,

Alauthman³

et al. 2018

Preprint

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The digital society is an outcome of the Internet which has nearly made everything connected and accessible no matter where or when. Nevertheless, despite the fact that conventional IP networks are complicated and very hard to manage, they are still widely adopted. The already established policies make the network configuration/reconfiguration a complex process that reacts to errors, load, and modifications. The prevailing networks are vertically integrated which makes things more and more complicated: Data planes and control are strapped together. Software-defined networking is a model that is meant to solve this issue by splitting the vertical integration and detaching the network’s control logic from the implicit routers and switches; this could be achieved by reinforcing centralization of network control and making the network programmable. In this work, we worked to implement MPLS networks with SDN, to enhance the traffic engineering over the network, and to minimize the network delay and latency, with minimum cost using three of the different SDN networks. The experiment results showed the advantage of the proposed approach for reducing the network delay, comparing with previous studies. Where the average of network delay in our approach reaches to 3.01 milliseconds.

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