Abstract The white-box optical ecosystem is considered as the future trend in transport networks, which includes the openness in both software and hardware. The openness in hardware decomposes the equipment into multiple independent components to reduce costs. And the openness in software including general YANG models make all components controllable, which enables fast innovation in the control plane of software-defined networking (SDN). In this paper, an open line architecture (OLA) is proposed to implement the openness and disaggregation to enable white-box optical ecosystem. OLA defines a transport application interface (TAPI) to provide a flexible control of the open line system. To build the physical network, OLA uses the optical equipment developed by different manufacturers that follows specific YANG specifications. And in the control plane, OLA develops a series of drivers and applications to control the calculation, creation, and deletion of optical connectivity service. Finally, the paper shows OLA in use as part of a testbed, which demonstrates the feasibility of building networks consisting of both open and disaggregated hardware.

中文翻译：

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支持白盒光学生态系统的开放线路架构

摘要 白盒光生态系统被认为是传输网络的未来趋势，包括软件和硬件的开放性。硬件的开放性将设备分解为多个独立的组件，以降低成本。包括通用 YANG 模型在内的软件的开放性使得所有组件都可以控制，从而实现软件定义网络 (SDN) 控制平面的快速创新。在本文中，提出了一种开放式架构（OLA）来实现开放性和分解性，以实现白盒光学生态系统。OLA 定义了传输应用程序接口 (TAPI) 以提供对开放线路系统的灵活控制。OLA 使用不同厂商开发的光设备来​​构建物理网络，并遵循特定的 YANG 规范。而在控制平面，OLA 开发了一系列驱动程序和应用程序来控制光连接服务的计算、创建和删除。最后，本文展示了 OLA 作为测试平台的一部分使用，这证明了构建由开放和分解硬件组成的网络的可行性。