Optical networks management and control: A review and recent challenges

IF 1.9 4区 计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS Optical Switching and Networking Pub Date : 2022-05-01 DOI:10.1016/j.osn.2021.100652
Nicola Andriolli , Alessio Giorgetti , Piero Castoldi , Gabriele Cecchetti , Isabella Cerutti , Nicola Sambo , Andrea Sgambelluri , Luca Valcarenghi , Filippo Cugini , Barbara Martini , Francesco Paolucci
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引用次数: 10

Abstract

In the last twenty years, optical networks have witnessed recurrent changes in their management and control architecture. In this paper, we present a historical timeline and a future perspective of the evolution of optical network management and control deployed for Wavelength Switched Optical Networks (WSON), Elastic Optical Networks (EON) and (multilayer) Data Center Networks.

Early implementations of WSON envisaged a static and centralized provisioning approach supported by the Management Plane only. Gradually, the requirement of accommodating more network dynamicity in WSON, and later in EON, pushed the adoption of a distributed control, mostly supported by vendor-dependent implementations of the Generalized MultiProtocol Label Switching (GMPLS) protocol suite. The drawbacks of the fully distributed GMPLS-based control, such as resource contention, suboptimal resource usage, and complex computations (e.g., to account for physical layer constraints) showed the necessity to bring back some of the routing/provisioning functions to a centralized Path Computation Element (PCE) capable of accounting for e.g. physical impairments and interworking with GMPLS.

The centralized control then gained its momentum and brought a radical change in network control, through the separation of data and control plane introduced by the paradigm of Software Defined Networking (SDN). Such an approach has been gradually extended to optical network control.

The paper, eventually, presents the most advanced control techniques, namely the intent-based networking, the observe/decide/act state-based approach providing for autonomic optical network and the (closed-loop) zero-touch service management approach. Advanced traffic conditioning techniques are also detailed, namely the in-band telemetry and the exploitation of Programming Protocol-Independent Packet Processors (P4) language capabilities as well as solutions tailored for data center networks: all of them are still in a research stage and to be integrated within future optical network architectures.

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光网络管理与控制:回顾与最新挑战
在过去的二十年里,光网络的管理和控制体系结构发生了反复的变化。在本文中,我们提出了波长交换光网络(WSON),弹性光网络(EON)和(多层)数据中心网络部署的光网络管理和控制的历史时间表和未来的发展前景。WSON的早期实现设想了一种仅由管理平面支持的静态和集中的供应方法。渐渐地,在WSON以及后来的EON中容纳更多网络动态的需求推动了分布式控制的采用,主要由通用多协议标签交换(GMPLS)协议套件的供应商相关实现支持。完全分布式的基于GMPLS的控制的缺点,如资源争夺、次优资源使用和复杂的计算(例如,考虑物理层约束)表明有必要将一些路由/供应功能恢复到能够考虑物理损伤和与GMPLS交互的集中路径计算元素(PCE)。通过软件定义网络(SDN)范式引入的数据和控制平面分离,集中控制得到了发展势头,并给网络控制带来了根本性的变化。这种方法已逐步推广到光网络控制中。最后,本文介绍了最先进的控制技术,即基于意图的网络,为自主光网络提供的基于观察/决定/行动状态的方法和(闭环)零接触服务管理方法。本文还详细介绍了先进的流量调节技术,即带内遥测和编程协议独立包处理器(P4)语言能力的开发,以及为数据中心网络量身定制的解决方案:所有这些技术仍处于研究阶段,并将集成到未来的光网络架构中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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
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