Abstract Optical Networks are composed of multiple devices, from multiple vendors. Normally these networks have a huge transmission capacity. The Slicing of Optical Networks is not a new concept, but continues to be very important, since the capacity of Optical Networks keeps evolving. Most of the time the slicing is manually configured by system operators. Besides being laborious and error-prone, such configuration limits the clients’ ability to customize and configure the network according to their own needs. One way out of this problem is to separate from these devices the control of and the data from the planes. The Software Defined Networks (SDNs) propose the separation of planes while also offering network operators the flexibility to create and manage applications, enabling them to reduce the network costs by globally optimizing the network’s resources, reducing the staff needed to configure it, and contributing for less violation of the service level agreement (SLA). SDN can also help operators to maximize their profit by generating more revenue through mechanisms that increase availability and failure resiliency, maximize throughput, allow for fast dynamic reprovisioning and enable network virtualization. The goal of this paper is to propose a Software Defined Optical Networks Slicing Architecture (SONA) extension (eSONA). that permits defining components such as topology manager, inventory manager, slice manager and path provisioner, and thus enable Optical Networks slicing. It has proved to be capable of managing different slices and provisioning a path on a given slice over the same physical optical network. It has showed an excellent performance, taking little time to provision paths, even with a large number of nodes, which are crucial for optical environments.

中文翻译：

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一种扩展的软件定义光网络切片架构

摘要 光网络由来自多个供应商的多个设备组成。通常这些网络具有巨大的传输容量。光网络切片并不是一个新概念，但仍然非常重要，因为光网络的容量在不断发展。大多数情况下，切片是由系统操作员手动配置的。除了费力和容易出错之外，这种配置限制了客户根据自己的需要定制和配置网络的能力。解决这个问题的一种方法是将这些设备的控制和数据从飞机中分离出来。软件定义网络 (SDN) 提出了平面分离，同时还为网络运营商提供了创建和管理应用程序的灵活性，使他们能够通过全局优化网络资源、减少配置网络所需的员工以及减少违反服务级别协议 (SLA) 的情况来降低网络成本。SDN 还可以通过提高可用性和故障恢复能力、最大化吞吐量、允许快速动态重新配置和启用网络虚拟化的机制产生更多收入，从而帮助运营商实现利润最大化。本文的目标是提出一种软件定义的光网络切片架构 (SONA) 扩展 (eSONA)。这允许定义拓扑管理器、库存管理器、切片管理器和路径供应器等组件，从而实现光网络切片。事实证明，它能够管理不同的切片并在同一物理光网络上的给定切片上提供路径。它表现出出色的性能，即使在节点数量众多的情况下，也只需很少的时间来提供路径，这对于光环境至关重要。