lwIP TCP/IP 协议栈笔记之十五： TCP协议

目录
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#1.%20TCP%20%E6%9C%8D%E5%8A%A1%E7%AE%80%E4%BB%8B">1. TCP 服务简介</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.%20TCP%20%E7%9A%84%E7%89%B9%E6%80%A7">2. TCP 的特性</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.1%20%E8%BF%9E%E6%8E%A5%E6%9C%BA%E5%88%B6">2.1 连接机制</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.2%20%E7%A1%AE%E8%AE%A4%E4%B8%8E%E9%87%8D%E4%BC%A0">2.2 确认与重传</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.3%20%E7%BC%93%E5%86%B2%E6%9C%BA%E5%88%B6">2.3 缓冲机制</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.4%20%E5%85%A8%E5%8F%8C%E5%B7%A5%E9%80%9A%E4%BF%A1">2.4 全双工通信</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.5%20%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6">2.5 流量控制</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.6%20%E5%B7%AE%E9%94%99%E6%8E%A7%E5%88%B6">2.6 差错控制</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#2.7%20%E6%8B%A5%E5%A1%9E%E6%8E%A7%E5%88%B6">2.7 拥塞控制</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#3.%20%E7%AB%AF%E5%8F%A3%E5%8F%B7%E7%9A%84%E6%A6%82%E5%BF%B5">3. 端口号的概念</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#4.%20TCP%20%E6%8A%A5%E6%96%87%E6%AE%B5%E7%BB%93%E6%9E%84">4. TCP 报文段结构</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#4.1%20TCP%20%E6%8A%A5%E6%96%87%E6%AE%B5%E7%9A%84%E5%B0%81%E8%A3%85">4.1 TCP 报文段的封装</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#4.2%C2%A0TCP%20%E6%8A%A5%E6%96%87%E6%AE%B5%E6%A0%BC%E5%BC%8F">4.2 TCP 报文段格式</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#%C2%A05.%20TCP%20%E8%BF%9E%E6%8E%A5"> 5. TCP 连接</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#5.1%20%E2%80%9C%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E2%80%9D%E5%BB%BA%E7%AB%8B%E8%BF%9E%E6%8E%A5">5.1 “三次握手”建立连接</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#%C2%A05.2%20%E2%80%9C%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B%E2%80%9D%E7%BB%88%E6%AD%A2%E8%BF%9E%E6%8E%A5"> 5.2 “四次挥手”终止连接</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#6.%20TCP%20%E7%8A%B6%E6%80%81">6. TCP 状态</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#6.1%20LwIP%20%E4%B8%AD%E5%AE%9A%E4%B9%89%E7%9A%84TCP%20%E7%8A%B6%E6%80%81">6.1 LwIP 中定义的TCP 状态</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#6.2%20TCP%20%E7%8A%B6%E6%80%81%E8%BD%AC%E7%A7%BB">6.2 TCP 状态转移</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#7.%20TCP%20%E4%B8%AD%E7%9A%84%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84">7. TCP 中的数据结构</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#8.%20%E7%AA%97%E5%8F%A3%E7%9A%84%E6%A6%82%E5%BF%B5">8. 窗口的概念</a>
<a href="https://blog.csdn.net/XieWinter/article/details/100549066#8.1%20%E6%8E%A5%E6%94%B6%E7%AA%97%E5%8F%A3">8.1 接收窗口</a>
<a href="https