高性能路由器硬件抽象层的设计与实现  

Design and Implementation of Hardware Abstraction Level of High-Performance Router

作　　者：吴美娟[1] 魏进武[1] 陈庶樵[1] 岳俭[1] 

机构地区：[1]国家数字交换系统工程技术研究中心,郑州450002

出　　处：《计算机科学》2004年第7期156-158,191,共4页Computer Science

基　　金："十五"863计划信息技术领域重大项目(No.2001AA121011)资助课题;河南省自然科学基金(No.0111061300)

摘　　要：分布式体系结构已成为高性能路由器普遍采用的实现结构,然而迫切需要解决的问题是如何实现独立于上层软件及底层硬件的通用性支撑软件体系结构。本文针对高性能路由器体系结构及功能特点,提出了硬件抽象层(HAL)的设计方案并予以实现。该方案在主处理单元上模拟从处理单元线路接口行为,由系统管理模块维护从处理单元的正常工作。测试结果表明,HAL在轻、重负载下,其效率及可靠性均能满足高性能路由器的需求,且其功能可满足软件体系结构的可扩展性需求。High-performance router is normally designed on distributed architecture. However,how to implement a versatile support software architecture which is independent of its upper layer software is a problem that must be re-solved. This paper presents a hardware abstraction level design method and implements it. The method simulates ac-tions of the interface units of subcontrol unit,and uses system manage module to maintain the work of subcontrol u-nit. The results of testing show that the efficiency and security of this method can satisfy the need of high-perfor-mance router, and its function can meet extensible need.

关 键 词：网络 路由器 硬件抽象层 分布式结构 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]