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Electronics
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Software-Defined Optical Networks
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Software-Defined Optical Networks

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Networks".

Deadline for manuscript submissions: closed (30 August 2015) | Viewed by 22282

Special Issue Editor

Dr. Lei Liu

E-Mail Website
Guest Editor
Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA 95616, USA
Interests: optical communications and networking; software-defined networks; network control plane

Special Issue Information


Dear Colleagues,

Software defined networking (SDN) is defined as a control framework that supports the programmability of network functions by decoupling the data plane and the control plane, which are currently vertically integrated in most network equipment. SDN technology allows network operators to manipulate the logical map of a network and create multiple co-existing network slices that are independent of the underlying transport technology. Enabling SDN at the optical layer can potentially facilitate application-specific network slicing at the optical layer. The combination of SDN and the recent advances in programmable optical device technologies has enabled the software-defined optical networks that can be flexibly and dynamically provisioned and reconfigured. This SDN-based flexible and unified network control function allows service providers to support a wide range of emerging dynamic applications over optical networks, such as cloud computing and optical network virtualization.

To enable software-defined optical networking, several key technical challenges must be addressed. These challenges include, but are not limited to, software-defined optical network architectures and associated protocols, the intelligent end-to-end provisioning and reconfiguration of resources to support dynamic and heterogeneous applications, the solutions for supporting multi-layer and multi-domain software-defined optical networks, and the design of mechanisms that provide survivability against optical link or node failures, etc.

This Special Issue solicits submissions of original work and survey papers on all topics related to recent advances in software-defined optical networks.

Dr. Lei Liu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • software-defined optical network architecture
  • openflow and other enabling sdn protocols for software-defined optical networks
  • software-defined optical network design and planning
  • routing, wavelength (or spectrum) allocation, and modulation format assignment algorithms in software-defined optical networking
  • sdn-enabled optical network virtualization and clouds
  • devices, sub-systems, and transmission technologies for software-defined optical networks
  • software-defined multi-layer or multi-domain optical networks
  • interoperability of the sdn control plane with existing control plane techniques (gmpls/pce) for optical networks
  • sdn-based optical network survivability (e.g., protection and restoration)
  • green technologies in software-defined optical networks
  • security issues in software-defined optical networks
  • techno-economic analysis, market expectations, including the carriers’ view, and standardization for software-defined optical networks
  • test-bed demonstration and field trials for software-defined optical networks

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Published Papers (3 papers)

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Research

812 KiB  
Article
Software-Controlled Next Generation Optical Circuit Switching for HPC and Cloud Computing Datacenters
by Muhammad Imran, Martin Collier, Pascal Landais and Kostas Katrinis
Electronics 2015, 4(4), 909-921; https://doi.org/10.3390/electronics4040909 - 5 Nov 2015
Cited by 1 | Viewed by 6811
Abstract
In this paper, we consider the performance of optical circuit switching (OCS) systems designed for data center networks by using network-level simulation. Recent proposals have used OCS in data center networks but the relatively slow switching times of OCS-MEMS switches (10–100 ms) and [...] Read more.
In this paper, we consider the performance of optical circuit switching (OCS) systems designed for data center networks by using network-level simulation. Recent proposals have used OCS in data center networks but the relatively slow switching times of OCS-MEMS switches (10–100 ms) and the latencies of control planes in these approaches have limited their use to the largest data center networks with workloads that last several seconds. Herein, we extend the applicability and generality of these studies by considering dynamically changing short-lived circuits in software-controlled OCS switches, using the faster switching technologies that are now available. The modelled switch architecture features fast optical switches in a single hop topology with a centralized, software-defined optical control plane. We model different workloads with various traffic aggregation parameters to investigate the performance of such designs across usage patterns. Our results show that, with suitable choices for the OCS system parameters, delay performance comparable to that of electrical data center networks can be obtained. Full article
(This article belongs to the Special Issue Software-Defined Optical Networks)
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1206 KiB  
Article
Reference Architecture for Multi-Layer Software Defined Optical Data Center Networks
by Casimer DeCusatis
Electronics 2015, 4(3), 633-650; https://doi.org/10.3390/electronics4030633 - 18 Sep 2015
Cited by 1 | Viewed by 8255
Abstract
As cloud computing data centers grow larger and networking devices proliferate; many complex issues arise in the network management architecture. We propose a framework for multi-layer; multi-vendor optical network management using open standards-based software defined networking (SDN). Experimental results are demonstrated in a [...] Read more.
As cloud computing data centers grow larger and networking devices proliferate; many complex issues arise in the network management architecture. We propose a framework for multi-layer; multi-vendor optical network management using open standards-based software defined networking (SDN). Experimental results are demonstrated in a test bed consisting of three data centers interconnected by a 125 km metropolitan area network; running OpenStack with KVM and VMW are components. Use cases include inter-data center connectivity via a packet-optical metropolitan area network; intra-data center connectivity using an optical mesh network; and SDN coordination of networking equipment within and between multiple data centers. We create and demonstrate original software to implement virtual network slicing and affinity policy-as-a-service offerings. Enhancements to synchronous storage backup; cloud exchanges; and Fibre Channel over Ethernet topologies are also discussed. Full article
(This article belongs to the Special Issue Software-Defined Optical Networks)
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671 KiB  
Article
Unified Multi-Layer among Software Defined Multi-Domain Optical Networks (Invited)
by Hui Yang, Yadi Cui and Jie Zhang
Electronics 2015, 4(2), 329-338; https://doi.org/10.3390/electronics4020329 - 11 Jun 2015
Cited by 3 | Viewed by 6306
Abstract
The software defined networking (SDN) enabled by OpenFlow protocol has gained popularity which can enable the network to be programmable and accommodate both fixed and flexible bandwidth services. In this paper, we present a unified multi-layer (UML) architecture with multiple controllers and a [...] Read more.
The software defined networking (SDN) enabled by OpenFlow protocol has gained popularity which can enable the network to be programmable and accommodate both fixed and flexible bandwidth services. In this paper, we present a unified multi-layer (UML) architecture with multiple controllers and a dynamic orchestra plane (DOP) for software defined multi-domain optical networks. The proposed architecture can shield the differences among various optical devices from multi-vendors and the details of connecting heterogeneous networks. The cross-domain services with on-demand bandwidth can be deployed via unified interfaces provided by the dynamic orchestra plane. Additionally, the globalization strategy and practical capture of signal processing are presented based on the architecture. The overall feasibility and efficiency of the proposed architecture is experimentally verified on the control plane of our OpenFlow-based testbed. The performance of globalization strategy under heavy traffic load scenario is also quantitatively evaluated based on UML architecture compared with other strategies in terms of blocking probability, average hops, and average resource consumption. Full article
(This article belongs to the Special Issue Software-Defined Optical Networks)
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