We investigate the techno-economic benefits of a novel optical transport network (OTN) architecture that meets the transport requirements of 6G systems in the Metro/Core network segments. The proposed solution is based on the disaggregation of the monolithic chassis-based node architecture that is used today to deploy OTN networks. The disaggregation breaks up the monolithic node system into stand alone white-boxes interconnected through active optical cables in a leaf-spine configuration. The leafs consist of line cards that provide client port interfaces, while the spines are Ethernet switches that emulate the process of OTN switching. The resulting solution provides a scalable and software-controlled OTN architecture based on off-the-shelf white-boxes that minimize the network acquisition costs. Results for a selected network scenario show that - compared to the monolithic solution - the disaggregated architecture yields average cost savings on the order of 39.7%.

中文翻译：

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6G 移动系统传输网络架构的技术经济评估


我们研究了一种新型光传输网络 （OTN） 架构的技术经济效益，该架构满足城域/核心网段中 6G 系统的传输要求。所提出的解决方案基于当今用于部署 OTN 网络的基于机箱的单体节点架构的分解。分解将整体节点系统分解为独立的白盒，这些白盒通过叶脊配置中的有源光缆互连。枝叶由提供客户端端口接口的线卡组成，而主干是模拟 OTN 交换过程的以太网交换机。最终的解决方案基于现成的白盒提供可扩展且由软件控制的 OTN 架构，可最大限度地降低网络购置成本。所选网络场景的结果表明，与整体式解决方案相比，分解式架构平均可节省 39.7% 的成本。