Optimization of low-efficiency traffic in OpenFlow Software Defined Networks

Saldaña, José; Pascual, Fernando; Hoz, David de; Fernández-Navajas, Julián; Ruíz-Mas, José; López, Diego; Florez, David; Castell, Juan A.; Núñez, Manuel

doi:10.1109/spects.2014.6879992

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…Saldana et al 15 proposed another scheme that implements header compression within an OpenFlowbased SDN. In this scheme, the static header fields that present in OpenFlow tuple are removed from packet headers, providing significant bandwidth savings.…”

Section: End-to-end Header Compressionmentioning

confidence: 99%

Improving bandwidth utilization by compressing small-payload traffic for vehicular networks

Sun

Dong

Qin

et al. 2019

International Journal of Distributed Sensor Networks

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The low bandwidth utilization is a serious problem for mobile services over vehicular networks. This is mainly resulted from the high-rate transmission of packets carrying small payloads. Some solutions are proposed to forward packets by context identifier, instead of IP address, based on header compression and software-defined networking technology. However, these solutions cannot be deployed in vehicular networks successfully, due to the limitations on processing capacity and routing scalability. In this article, we propose a scalable end-to-end header compression scheme, which takes advantage of the locator/identifier separation concept and some characteristics of software-defined networking. We propose to utilize a forwarding identifier to indicate the compressor's location, separating the header compression process from the packet forwarding process. In this way, context identifiers with an identical value are allowed to coexist in the same network, and flow table entries matching the compressed flows can be aggregated. Extensive simulations have been conducted and the results demonstrate that scalable end-to-end header compression experiences outstanding performances in bandwidth utilization and delay, showing its greater suitability for vehicular network transmission optimization.

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Section: End-to-end Header Compressionmentioning

confidence: 99%

Improving bandwidth utilization by compressing small-payload traffic for vehicular networks

Sun

Dong

Qin

et al. 2019

International Journal of Distributed Sensor Networks

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“…In the context of home networks, Kumar et al proposed to leverage SDN to enable ISPs to expose some controls to the users to manage service quality for specific devices and applications in their household [10]. In 2014, Saldana et al used SDN to identify flows of small packets (such as VoIP) for removing common header fields and multiplexing packets in the same frame in order to reduce the overhead [11]. A Network Services Abstraction Layer (NSAL) and a unified data model were introduced by Sieber et al for both SDN and legacy devices in order to achieve QoS for time-critical VoIP applications [12].…”

Section: Related Workmentioning

confidence: 99%

SDN-driven multicast streams with adaptive bitrates for VoIP conferences

Hasrouty

Autefage²,

Olariu³

et al. 2016

2016 IEEE International Conference on Communications (ICC)

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Achieving high-quality voice conference calls over the Internet is a difficult task. Heterogeneous mobile devices and network dynamics must be properly managed by multiparty VoIP systems to ensure a good quality of experience. In this paper, we propose a multiparty VoIP system based on SDN technology that uses both multicast distribution and dynamic stream adaptation to optimize the conference call quality for each participant. We define a tree construction algorithm that includes two modes: a minimum spanning tree mode and a shortest path tree mode. We have simulated conference calls with various parameters and results show that a trade-off can be achieved between path latency and bandwidth consumption when using multicasted streams with adaptive bitrates. Compared to a typical multiparty VoIP system, up to two-third bandwidth consumption reduction is possible with only a small increase of the average path latency. Our solution could be leveraged by other types of real-time applications such as online gaming.

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“…16 reports the bandwidth savings, obtained using equation (1). 1 The trace has been filtered with Wireshark using 'ip.src!=192.168.0.0/16' for obtaining the downlink packets. 2 The filter in this case is 'ip.dst!=192.168.0.0/16' It can be seen that for the two high-throughput traces (Chicago and DSL_uplink), the small packets can be almost totally avoided (see Fig.…”

Section: B Public Traffic Tracesmentioning

confidence: 99%

Small-Packet Flows in Software Defined Networks: Traffic Profile Optimization

Saldaña¹,

Hoz²,

Fernández-Navajas³

et al. 2015

JNW

Self Cite

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Abstract-This paper proposes a method for optimizing bandwidth usage in Software Defined Networks (SDNs) based on OpenFlow. Flows of small packets presenting a high overhead, as the ones generated by emerging services, can be identified by the SDN controller, in order to remove header fields that are common to any packet in the flow, only during their way through the SDN. At the same time, several packets can be multiplexed together in the same frame, thus reducing the overall number of frames. The method can be useful for providing QoS while the packets are traversing the SDN. Four kinds of small-packet traffic flows are considered (VoIP, UDP and TCP-based online games, and ACKs from TCP flows). Both IPv4 and IPv6 are studied, and significant bandwidth savings (up to 68 % for IPv4 and 78 % for IPv6) can be obtained for the considered kinds of traffic. The optimization method is also applied to different public Internet traffic traces, and significant reductions in terms of packets per second are achieved. Results show that bandwidth consumption is also reduced, especially in those traces where the percentage of small packets is high. Regarding the effect on QoS, the additional delay can be kept very low (below 1 millisecond) when the throughput is high, but it may become significant for lowthroughput scenarios. Thus, a trade-off between bandwidth saving and additional delay appears in those cases.

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Optimization of low-efficiency traffic in OpenFlow Software Defined Networks

Abstract: Abstract-

Cited by 7 publications

References 16 publications

Improving bandwidth utilization by compressing small-payload traffic for vehicular networks

Improving bandwidth utilization by compressing small-payload traffic for vehicular networks

SDN-driven multicast streams with adaptive bitrates for VoIP conferences

Small-Packet Flows in Software Defined Networks: Traffic Profile Optimization

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