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车载以太网 | 传输层:TCP&UDP详解
IP协议就能够实现源节点和目的节点之间的数据传输,为什么还要传输层呢? 两个设备之间的通信不是简单的数据传输,更准确的是两个设备上的应用进程之间的数据交换。换句话说,IP层虽然将数据报从源节点发送到目的节点,但该数据报还只是停留在网络层 ...
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