Next generation networks under the SDN and OpenFlow protocol architecture

Martínez, Carlos Andrés Salazar; Ferro, Ricardo Rage; Ruiz, William

doi:10.1109/wea.2015.7370147

Cited by 5 publications

(2 citation statements)

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“…This attracts not only the research community but also the networking industry [2]. OpenFlow became the most popular and powerful implementation of the SB interface [22], standardized by Open Network Foundation [23] to control the behavior of the SDN devices. [24] developed OpenState as a superset extension of Openflow aimed at offloading some of the control logic to switches thereby shifting the pragmatic approach from stateless to stateful operation.…”

Section: Sdn Southbound Interfacementioning

confidence: 99%

Software Defined Networking Flow Table Management of OpenFlow Switches Performance and Security Challenges: A Survey

et al. 2020

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Software defined networking (SDN) is an emerging network paradigm that decouples the control plane from the data plane. The data plane is composed of forwarding elements called switches and the control plane is composed of controllers. SDN is gaining popularity from industry and academics due to its advantages such as centralized, flexible, and programmable network management. The increasing number of traffics due to the proliferation of the Internet of Thing (IoT) devices may result in two problems: (1) increased processing load of the controller, and (2) insufficient space in the switches’ flow table to accommodate the flow entries. These problems may cause undesired network behavior and unstable network performance, especially in large-scale networks. Many solutions have been proposed to improve the management of the flow table, reducing controller processing load, and mitigating security threats and vulnerabilities on the controllers and switches. This paper provides comprehensive surveys of existing schemes to ensure SDN meets the quality of service (QoS) demands of various applications and cloud services. Finally, potential future research directions are identified and discussed such as management of flow table using machine learning.

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Section: Sdn Southbound Interfacementioning

confidence: 99%

Software Defined Networking Flow Table Management of OpenFlow Switches Performance and Security Challenges: A Survey

et al. 2020

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“…The recent Software Defined Networking networking paradigm (SDN) and associated protocols and implementations such as OpenFlow Protocol [30] and Open VSwitch (OVS) [31] allow programmability in the data plane. However, these are are not protocol independent.…”

Section: E Programmable Data Plane Switchesmentioning

confidence: 99%

Design and Implementation of SMARTHO -- A Network Initiated Handover mechanism in NG-RAN, on P4-based Xilinx NetFPGA switches

Palagummi,

Sivalingam

2020

Preprint

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This report deals with the design of handover schemes for radio access networks (RAN) in 5G networks, using programmable data plane switches. The network architecture is expected to be a centralized cloud infrastructure, connected via a backhaul network to many edge-computing clouds that are closer to the end-user. Some of the network services can be implemented in edge devices to improve network performance.In 5G networks, the C-RAN architecture splits the Base Band Unit (BBU) into Central and Distributed Units (CU and DU). This structure has created a mid-haul Network, connecting CUs and DUs. The mid-haul network has created a dataplane challenge that does not exist in traditional distributed RANs -the need for efficient connections between the CUs and DUs. Traditional encapsulation techniques can be used to transport packets across the CU and DU. However, the recent advancements in dataplane programmability can be used to enhance the system performance. In this report, we show how P4 switches can be used to parse the packets between DU, CU, and Back Haul (Core Network) for potential system improvements. In particular, we consider the scenario of mobile handover, that arises when a user moves between different cells in the mobile network. The proposed protocol is called SMARTHO, illustrating a smart handover.Programming Protocol-Independent Packet Processors (P4) is a programming language designed to support specification and programming the forwarding plane behavior of network switches/routers. With P4 switches, the protocol designer can define customized packet headers, parsing of headers, and defining new match-action routines. In SMARTHO, we use P4 Switches to intervene in the handover process for fixed-path mobile users. Such users could be those in a train, drones, devices with high-degree of predictable mobility, etc. A resource pre-allocation scheme that reserves resources before the UE reaches a future cell, is proposed. The solution is implemented using a P4-based switch introduced between the CU and the DU. The P4 switch is used to spoof the behavior of User Equipment (UE) and perform the resource allocation in advance. This is expected to reduce the handover time as the user moves along its path.The proposed SMARTHO framework is implemented in the mininet emulation environment and in a reconfigurable hardware environment using NetFPGA-SUME boards. For Mininet based simulation, we used virtual hosts connected using P4 switches, using the P4 behavior model (P4BMv2) software switch. User and control traffic is also generated to simulate the mobile traffic and measure the HO performance. User traffic is represented using ICMP ping packets over a tag. The results show a handover response time improvement of 18% for a tandem of two HOs and 25% for a tandem of three HOs. For testbed implementation, we used

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Design and Implementation of SDN-Based Underwater Acoustic Sensor Networks With Multi-Controllers

et al. 2018

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Next generation networks under the SDN and OpenFlow protocol architecture

Cited by 5 publications

References 1 publication

Software Defined Networking Flow Table Management of OpenFlow Switches Performance and Security Challenges: A Survey

Software Defined Networking Flow Table Management of OpenFlow Switches Performance and Security Challenges: A Survey

Design and Implementation of SMARTHO -- A Network Initiated Handover mechanism in NG-RAN, on P4-based Xilinx NetFPGA switches

Design and Implementation of SDN-Based Underwater Acoustic Sensor Networks With Multi-Controllers

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