一、前言医院信息系统是以病人为中心、全面支持医疗和经济管理、高度集成化的系统。它由计算机网络和系统软件两大部分构成。其中建立一个覆盖整个院区、高效可靠的计算机网络是整个医院信息系统的基础，它的性能好坏成为影响整个系统性能的重要因素。建立计算机网络，一般可 I. INTRODUCTION The hospital information system is a patient-centric system that fully supports medical and economic management and is highly integrated. It consists of two parts: computer network and system software. The establishment of an efficient and reliable computer network covering the entire campus is the basis of the entire hospital information system. Its performance is an important factor that affects the performance of the entire system. Establish a computer network, generally available