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关于TCP三次握手 #8

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Zjd1996 opened this issue Mar 8, 2020 · 2 comments

Zjd1996 commented Mar 8, 2020

关于TCP三次握手为什么不能是两次的原因：

首先，两次握手无法保证Client正确接收第二次握手的报文，从而无法保证Client和Server之间建立的是双向的对称“链路”，也无法保证Client和Server之间成功互换初始序列号。
其次，可能出现已失效的连接请求报文被Server再次接收，从而可能建立不需要的连接，浪费资源。

Owner

wolverinn commented Mar 8, 2020

谢谢

Author

Zjd1996 commented Mar 8, 2020

在参考您的笔记学习中...感谢分享

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