计算机网络-第3章往返时间的估计与超时-同步电大进度

r囧r小猫 2023-01-15 03:57 50阅读 0赞

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假定TCP在开始建立连接时，发送方设定超时重传时间RTO = 6s，当发送方收到对方的连接确认报文段时，测量出RTT样本值为1.5s, 那么现在的RTO值是\_**4.5\_**\_\_\_\_\_s。

### 超时重传 ###

**若收到的报文段无差错，只是未按序号，中间还缺少一些序号的数据，那么能否设法只传送缺少的数据而不是重传已经正确到达的数据？**

不能

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