Enabling high-level QoS metrics for interactive online applications using SDN

Gorlatch, Sergei; Humernbrum, Tim

doi:10.1109/iccnc.2015.7069432

Cited by 16 publications

(14 citation statements)

References 6 publications

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“…Additionally, they propose the use of network monitoring features to detect requirement violations due to dynamically changing network load and they use this information to trigger path recomputations. In [13] and [14], further SDN-based network resource management and QoS mechanisms are proposed, but although the basic principles in the related work with soft RT focus are partly similar to those of our proposed system and the concept of [11], the given analysis is typically not sufficient to provide any guarantees with respect to worst-case latency or jitter. Instead, these approaches consider the adaption of the network configuration to dynamically changing traffic patterns, which typically occur in IT and data center networks.…”

Section: Related Workmentioning

confidence: 98%

Application-aware industrial ethernet based on an SDN-supported TDMA approach

Schweissguth

Danielis

Niemann

et al. 2016

2016 IEEE World Conference on Factory Communication Systems (WFCS)

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In industrial automation environments, networks providing a reliable and timely data delivery are required. Fulfilling this need, Industrial Ethernet (IE) systems have established as an important networking technology in many application areas. Although there are several IE solutions on the market, all of these systems have notable drawbacks, like limited scalability or the introduction of a Single Point of Failure (SPoF).Therefore, we propose a novel IE system that is based on Software Defined Networking (SDN). Originally meant for data center and IT networks, the SDN concept offers features like central network management functions and a fine-grained traffic control that allows to support many applications with diverse requirements even in the same network. Thereby, SDN is also perfectly suited for complex automation environments. To guarantee RT data transmission as well as scalability and an efficient resource usage, our IE system uses a Medium Access Control (MAC) scheme that is based on a Time Division Multiple Access (TDMA) mechanism that is extended by simultaneous data transmissions on physically separate links. The enhanced TDMA mechanism is configured by a joint routing and scheduling algorithm that takes application requirements into account. Our theoretical analysis as well as results achieved with a prototype implementation of the system confirm the applicability of our concept in demanding automation environments with applications that require a worst case communication latency below 1 ms.

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Section: Related Workmentioning

confidence: 98%

Application-aware industrial ethernet based on an SDN-supported TDMA approach

Schweissguth

Danielis

Niemann

et al. 2016

2016 IEEE World Conference on Factory Communication Systems (WFCS)

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“…However, this results in a sub-optimal QoE by the end-user. Use of SDN technology to meet the dynamic network demands of ROIA, therefore improving QoE, is studied in [71,72]. The study propose a Northbound API consisting of two parts, Base API and Application-level API, in order to differentiate and map application-oriented QoS metrics to network-oriented ones.…”

Section: Qoe-aware Mechanismsmentioning

confidence: 99%

“…[65] A QoE-Aware IPTV network architecture design over OpenFlow networks [66,67] A system to improve user QoE by bandwidth allocation management framework at home networks [68,69] Design of Q-POINT, a QoE-driven path optimization model [70] An OpenFlow-assisted QoE Fairness Framework (QFF) to maximize the QoE of clients in a shared network [71,72] A Northbound API design for online applications to increase QoE of users [73] A study investigating how different kinds of information such as per-flow parameters, application signatures etc. can improve network management Network Monitoring Mechanisms (Sec.…”

Section: Research Challengesmentioning

confidence: 99%

Quality of Service (QoS) in Software Defined Networking (SDN): A survey

Karakuş

Durresi

2017

Journal of Network and Computer Applications

338

139

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Supporting end-to-end Quality of Service (QoS) in existing network architectures is an ongoing problem. Although researchers from both academia and industry have proposed many solutions to solve the QoS limitations of the current networking, many of them either failed or were not implemented. Software Defined Networking (SDN) paradigm has emerged in response to limitations of traditional networking architectures. Its main advantages are the centralized global network view, programmability, and separation of the data plane and control plane. These features have got attention of researchers to improve the QoS provisioning of today's various network applications. In this survey paper, we aim at making a picture of QoS-motivated literature in OpenFlow-enabled SDN networks by comprehensively surveying relevant research studies. We organize the related studies according to the categories that are the most prominent ways in which QoS can benefit from the concept of SDN: Multimedia flows routing mechanisms, inter-domain routing mechanisms, resource reservation mechanisms, queue management and scheduling mechanisms, Quality of Experience (QoE)-aware mechanisms, network monitoring mechanisms, and other QoS-centric mechanisms such as virtualization-based QoS provisioning and QoS policy management etc. In addition, we discuss QoS capabilities of OpenFlow protocol by reviewing its versions along with some well-known, open-source, and community-driven controller projects. Furthermore, we outline the potential challenges and open problems that need to be addressed further for better and complete QoS abilities in SDN/OpenFlow networks and lessons we have learned during preparation of this survey paper.

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“…To address this problem, the RTF with its SDN Module allows the game developer to specify application-level metrics which are then translated at runtime into network-level metrics understood by the SDN controller, see [7]. In this translation process, application monitoring data provided by the RTF are used.…”

Section: Qos For Mmog With Rtf and Sharkmentioning

confidence: 99%

RTF+Shark: Using Software-Defined Networks for Multiplayer Online Games

Humernbrum¹,

Delker²,

Glinka³

et al. 2015

2015 International Workshop on Network and Systems Support for Games (NetGames)

Self Cite

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We demonstrate how Massively Multiplayer Online Games (MMOG) can benefit from the emerging Software-Defined Networking (SDN) technology. We integrate Shark 3D TM -an industry-strength 3D game development framework -with the Real-Time Framework (RTF) -an open-source C++ library enhanced for SDN that provides development and runtime support for MMOG. This integration enables game developers to exploit SDN for guaranteeing network QoS in MMOG. A case study of an MMOG-like application in a real, SDN-enabled network shows the advantages of our approach. I. INTRODUCTIONMassively Multiplayer Online Games (MMOG) connect a potentially very high number of players who interact with the game world and with each other in real time; therefore, MMOG make strong QoS requirements both on the computational resources and on the underlying network. Moreover, these requirements are dynamic, i. e., they may vary at runtime. This makes MMOG development a challenging task and requires the developer to have detailed knowledge of game design and networking. To facilitate game development, systems such as id Tech and Big World support the developer by providing gaming-typical aspects, e. g., graphics, physics, AI, etc., but the important features of networking and QoS management are often missing.Our contribution is the integration of Shark 3D TM [1] -a commercial, real-time middleware and 3D engine -with the Real-Time Framework (RTF) [2] -a research-motivated, opensource C++ library for development and runtime support of MMOG including network QoS management. This RTF/Shark Integration (called RSI throughout the paper) allows the game developer to specify QoS requirements which are then enforced in the network by exploiting the emerging SoftwareDefined Networking (SDN) technology: a game application requests the SDN controller at runtime to accommodate certain QoS requirements for specific users; the controller then enforces the requested QoS, e. g., by redirecting or prioritizing the traffic of these users.Recent approaches [3][4][5] to managing QoS using SDN aim at a generic QoS functionality and, therefore, are hard to integrate in real-time applications like MMOG because they require the developer to map low-level networking details to high-level game demands. In contrast, our RSI approach adapts SDN-based network QoS management to the typical structure of MMOG in a commercially successful framework (Shark) and provides the developer with high-level QoS metrics which ease the game development process.

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Enabling high-level QoS metrics for interactive online applications using SDN

Cited by 16 publications

References 6 publications

Application-aware industrial ethernet based on an SDN-supported TDMA approach

Application-aware industrial ethernet based on an SDN-supported TDMA approach

Quality of Service (QoS) in Software Defined Networking (SDN): A survey

RTF+Shark: Using Software-Defined Networks for Multiplayer Online Games

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