摘要
以太网由于采用CSMA/CD(载波侦听多路访问/冲突检测)介质访问控制机制,因此具有通信"不确定性"的特点,网络设备间通信时会出现乱序、丢包、数据冲突等不确定性问题,本文对EPA以太网确定性调度实现方法进行研究,提出抑制广播风暴的方法,并采用白噪声法对网络系统确定性调度进行仿真,仿真结果表明采用改进方法后系统的确定性得到了提高。
As a result of adopting CSMA / CD （Carrier Sense Multiple Access / Collision Detected） medium access control mechanism in Ethernet,the network have the characteristics of communication ＂indetermination＂,there will be some indetermination problems such as disordering,packet losing and data conflicting when net nodes communicate to each other.This paper have studied the method of the EPA Ethernet deterministic scheduling.Proposing a improved- method to reduce the broadcast message-sending in network to enhance the deterministic of communication scheduling.Then made a simulation about deterministic scheduling network system by using white noise method.simulation results show that deterministic of the system has been improved by using the improved method.
出处
《电子测试》
2010年第4期39-42,共4页
Electronic Test
