[1、反向代理及接入层扩容](1%E3%80%81%E5%8F%8D%E5%90%91%E4%BB%A3%E7%90%86%E5%8F%8A%E6%8E%A5%E5%85%A5%E5%B1%82%E6%89%A9%E5%AE%B9.md) [2、DNS轮询，接入层架构演进](2%E3%80%81DNS%E8%BD%AE%E8%AF%A2%EF%BC%8C%E6%8E%A5%E5%85%A5%E5%B1%82%E6%9E%B6%E6%9E%84%E6%BC%94%E8%BF%9B.md) [3、Session一致性，N种架构](3%E3%80%81Session%E4%B8%80%E8%87%B4%E6%80%A7%EF%BC%8CN%E7%A7%8D%E6%9E%B6%E6%9E%84.md) [4、CDN如何实现就近访问](4%E3%80%81CDN%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E5%B0%B1%E8%BF%91%E8%AE%BF%E9%97%AE.md) [5、TCP接入，架构设计](5%E3%80%81TCP%E6%8E%A5%E5%85%A5%EF%BC%8C%E6%9E%B6%E6%9E%84%E8%AE%BE%E8%AE%A1.md)