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轮询访问MAC协议/轮流协议/轮转访问MAC协议：既不产生冲突，又要发送时占全部带宽。1、轮询协议主结点轮流“邀请”从属结点发送数据。轮询协议的缺点在于：有轮询开销；等待延迟和单点故障的问题存在。2、令牌传递协议令牌：一个有特殊格式的MAC控制帧，不含有任何信息；其用于控制信道的使用࿰...

【计算机网络】数据链路层 : 轮询访问介质访问控制 ( 轮询协议 | 令牌传递协议 )

文章目录一、介质访问控制 ( Multiple Access Control )二、轮询协议三、令牌传递协议四、令牌传递协议示例一、介质访问控制 ( Multiple Access Control )介质访问控制 ( Multiple Access Control ) 协议 : 简称 MAC...

云安全基础课 - 访问控制概述

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