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155MPOS线路的高速接口设计与实现
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2009-06-29
杜喜喜
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本文主要对155M POS 线路接口的设计与实现问题进行了研究，在IP 传输排队模型的
基础上，对HDLC 和SDL 两种链路层协议处理PPP 数据包的性能进行了分析和比较，给出了整个155M POS 线路接口硬件系统的设计方案及各子模块的功能划分，提出了输入和输出链路控制电路设计中的调度和缓存器管理策略，实现了整个系统硬件功能。
关键词: POS SDL HDLC 核心路由器 线路接口
Abstract: This paper is devoted to the research and implementation of 155M POS interface. Based on the research of queue model of IP transmission, performances of PPP frame processed by HDLC and SDL are analysed and compared. Then the hardware design of 155M POS interface and functional modules of the whole system are given. Furthermore, policies of scheduling and buffer management in the design of in-out link control circuit are proposed. In the end, the implementation of hardware system is given and the design of software system is briefly introduced.
Keyword: POS SDL HDLC CR(core router) Interface
基础上，对HDLC 和SDL 两种链路层协议处理PPP 数据包的性能进行了分析和比较，给出了整个155M POS 线路接口硬件系统的设计方案及各子模块的功能划分，提出了输入和输出链路控制电路设计中的调度和缓存器管理策略，实现了整个系统硬件功能。
关键词: POS SDL HDLC 核心路由器 线路接口
Abstract: This paper is devoted to the research and implementation of 155M POS interface. Based on the research of queue model of IP transmission, performances of PPP frame processed by HDLC and SDL are analysed and compared. Then the hardware design of 155M POS interface and functional modules of the whole system are given. Furthermore, policies of scheduling and buffer management in the design of in-out link control circuit are proposed. In the end, the implementation of hardware system is given and the design of software system is briefly introduced.
Keyword: POS SDL HDLC CR(core router) Interface
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