计算机网络——ARQ协议(自动重传请求)原理

庄小焱发布时间：2021-11-14 21:26:24 ，浏览量：4

摘要

自动重传请求（Automatic Repeat-reQuest，ARQ）是OSI模型中数据链路层和传输层的错误纠正协议之一。它通过使用确认和超时这两个机制，在不可靠服务的基础上实现可靠的信息传输。如果发送方在发送后一段时间之内没有收到确认帧，它通常会重新发送。ARQ包括停止等待ARQ协议和连续ARQ协议。ARQ协议是对滑动窗口的一个很好的实现。AQR协议的一个特点是：发送窗口的大小

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计算机网络——ARQ协议(自动重传请求)原理

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