摘要
基于以太网响应时间的恰当的分析模型具有并发、动态、冲突、实时性等特点。传统的建模方法在解决这类问题时存在着复杂、僵化、柔韧性差、没有时间概念等缺点。赋时分层着色Petri网(HTCPN)通过增加请求、服务、协调、多实例化等新的建模元素,能够仿真和模拟基于实时性的客户机-服务器交互关系的问题,同时分层技术的引入也更利于模拟任意结构的以太网模型。本文基于HTCPN建立了共享式和交换式以太网模型,通过对以太网模型响应时间的分析证明了HTCPN适合仿真和模拟这类问题。
An adequate analytical model of Ethernet response time contains the characteristics of concurrency, dynamics, conflict, real-timeness. Traditional modeling methods have some defects, such as complicatedness, rigidity, inflexibility and time-freeness. The hierarchical timed colored Petri net （HTCPN） models allow the representation of interaction within the real-time client-server systems by adding some new modeling elements, such as request node, service node, coordination node,and multiple instances node. The hierarchical net usage allows a convenient representation of the arbitrarily given structure of LAN. Two models are established based on HTCPN. It comes to a conclusion that HTCPN is suitable for simulating and imitating this question by analyzing the response time.
出处
《计算机工程与科学》
CSCD
2008年第11期5-8,共4页
Computer Engineering & Science
