提高软件定义光网络性能的架构

IF 1.9 4区 计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS Optical Switching and Networking Pub Date : 2024-07-01 DOI:10.1016/j.osn.2024.100783
Srija Chakraborty, Ashok Kumar Turuk, Bibhudatta Sahoo
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引用次数: 0

摘要

软件定义光网络(SDON)是光网络领域的一种革命性方法。软件定义网络(SDN)中控制平面和数据平面的分离增强了安全性并简化了网络管理。然而,性能和控制平面的可扩展性是 SDN 的重要问题。SDN 性能可通过突发丢失、延迟、信道占用、数据包丢失、吞吐量和平均响应时间等参数进行评估。数据平面和控制平面之间交换的信息数量被用作确定控制器可扩展性的指标。随着网络负载的增加,控制器的报文流量也会增加。这会导致突发传输延迟和突发丢失。偶尔,突发会超出固定大小突发器的容量,并被丢弃,因为要花很长时间才能为突发找到合适的路由。因此,必须尽量减少控制平面和数据平面之间的信息交换量,以提高性能和控制器的可扩展性。在本文中,我们提出了一种可扩展的 SDN 光网络架构,它能最大限度地减少数据平面和控制平面之间的信息交换量。我们提出了信道预留、传输周期和周期之间的保护时间等机制,以提高突发传输的速度和质量。在传输之前,为突发分配资源或信道,以尽量减少突发碰撞和丢失的可能性。数据平面由光突发交换(OBS)网络组成,流量表条目定期更新,以尽量减少平面间通信。我们进行了仿真,以评估和比较拟议架构与文献中报道的现有最先进架构的性能。在突发丢失、延迟、信道占用、数据包丢失、吞吐量、平均响应时间以及减少数据平面和控制平面之间的信息交换数量等指标方面,拟议架构的性能都优于现有的先进架构。实验结果表明,与现有架构相比,平均突发丢失概率降低了 41%,平均突发发送延迟降低了 40.5%。此外,与现有架构中交换的信息数量相比,控制平面和数据平面之间交换的信息数量减少了 42.1%。
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An architecture to improve performance of software-defined optical networks

The software-defined optical network (SDON) is a revolutionary approach in the field of optical networks. The separation of the control plane and data plane in software-defined networking (SDN) provides enhanced security and simplified network administration. Nevertheless, performance and control plane scalability are significant issues in SDN. SDN performance can be evaluated using parameters such as burst loss, delay, channel occupancy, packet loss, throughput, and average response time. The number of messages exchanged between the data plane and the control plane is used as a metric to determine controller scalability. As the network load increases, the controller experiences a higher flow of messages. It causes delay and burst loss in transmitting the burst. Occasionally, bursts exceed the capacity of the fixed-sized burstifier and are discarded because it takes a long time to identify a suitable route for the burst. Hence, it is essential to minimize the volume of messages exchanged between the control plane and the data plane to improve performance and controller scalability. In this paper, we propose a scalable SDN optical network architecture that minimizes the number of messages exchanged between the data plane and the control plane. We proposed mechanisms like channel reservation, transmission cycles, and guard time between cycles to enhance both the speed and the quality of burst transmission. Prior to transmission, resources or channels are allocated to bursts to minimize the possibility of burst collision and loss. The data plane comprises an optical burst switching (OBS) network, and the flow table entries are periodically updated to minimize inter-plane communication. We perform simulations to evaluate and compare the performance of the proposed architecture with the existing state-of-the-art architecture reported in the literature. The proposed architecture performs better than the existing state-of-the-art in terms of metrics including burst loss, delay, channel occupancy, packet loss, throughput, average response time, and reduction in the number of messages exchanged between the data plane and the control plane. Experimental results indicate a 41% reduction in mean burst loss probability and a 40.5% reduction in mean burst sending delay compared to existing architectures. Additionally, 42.1% fewer messages are exchanged between the control plane and the data plane compared to the number of exchanged messages in existing architectures.

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来源期刊
Optical Switching and Networking
Optical Switching and Networking COMPUTER SCIENCE, INFORMATION SYSTEMS-OPTICS
CiteScore
5.20
自引率
18.20%
发文量
29
审稿时长
77 days
期刊介绍: Optical Switching and Networking (OSN) is an archival journal aiming to provide complete coverage of all topics of interest to those involved in the optical and high-speed opto-electronic networking areas. The editorial board is committed to providing detailed, constructive feedback to submitted papers, as well as a fast turn-around time. Optical Switching and Networking considers high-quality, original, and unpublished contributions addressing all aspects of optical and opto-electronic networks. Specific areas of interest include, but are not limited to: • Optical and Opto-Electronic Backbone, Metropolitan and Local Area Networks • Optical Data Center Networks • Elastic optical networks • Green Optical Networks • Software Defined Optical Networks • Novel Multi-layer Architectures and Protocols (Ethernet, Internet, Physical Layer) • Optical Networks for Interet of Things (IOT) • Home Networks, In-Vehicle Networks, and Other Short-Reach Networks • Optical Access Networks • Optical Data Center Interconnection Systems • Optical OFDM and coherent optical network systems • Free Space Optics (FSO) networks • Hybrid Fiber - Wireless Networks • Optical Satellite Networks • Visible Light Communication Networks • Optical Storage Networks • Optical Network Security • Optical Network Resiliance and Reliability • Control Plane Issues and Signaling Protocols • Optical Quality of Service (OQoS) and Impairment Monitoring • Optical Layer Anycast, Broadcast and Multicast • Optical Network Applications, Testbeds and Experimental Networks • Optical Network for Science and High Performance Computing Networks
期刊最新文献
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