论文部分内容阅读
随着网络技术和多媒体业务的发展,Internet节点不断接入甚小孔径终端(Very Small Aperture Terminal,VSAT)卫星通信网络,丰富了VSAT的业务类型。然而传统VSAT通信网采用集中式网络管理结构,大量Internet节点的接入降低了VSAT通信网络性能。针对这一问题,文章设计了一种分布式卫星通信网络管理方案。本方案采用主从关系的分布式结构,包括一个主管理者和若干从管理者。主管理者首先计算各VSAT节点的任务负载率,依据轮询比例公平调度算法为从管理者均衡分配任务,保证各从管理者承担近似相同的任务负载率,解决了传统NMS中单一管理者任务负载率过高的问题,极大提升了网络管理系统(Network Management System,NMS)的任务处理能力,保障了业务的实时性。
With the development of network technologies and multimedia services, Internet nodes keep accessing the VSAT satellite communication network, enriching the service type of VSAT. However, the traditional VSAT communication network adopts a centralized network management structure, and the access of a large number of Internet nodes reduces the performance of the VSAT communication network. In response to this problem, the article designed a distributed satellite communications network management program. The program uses a master-slave relationship between the distributed structure, including a master manager and several from the manager. The main manager first calculates the task load rate of each VSAT node. Based on the round robin proportional fair scheduling algorithm, tasks are evenly distributed among managers to ensure that each manager assumes approximately the same task load rate and solves the problem of single manager task in the traditional NMS The problem of excessive load rate greatly improves the task processing capability of the network management system (NMS) and ensures the real-time performance of the service.