在城市局域网中许多数据处理和储存系统需要数太字节总带宽。数据通信应用需要高可用性（99.999%或更好）、高错误容限对所有通信协议保证高服务质量。此外，企业服务或主干框架采用平行处理系统结构，如平行Sysplex，它采用光纤光学线路内联微处理器，并以很低的抖动将时钟时? In urban area networks, many data processing and storage systems require a terabyte total bandwidth. Data communication applications require high availability (99.999% or better) and high error tolerances guarantee high quality of service for all communication protocols. In addition, enterprise services or backbone frameworks use parallel processing system architectures such as parallel Sysplex, which uses fiber optics inline microprocessors and clocks with very low jitter?