看到一个有意思的 case，运行超过 497 天的 2008R2 系统，timewait 状态的端口不能释放，业务不断请求导致 timewait 状态的端口越来越多，最终可能端口耗尽，网络中断
原文：https://www.alibabacloud.com/blog/594839
微软资料：
https://support.microsoft.com/zh-cn/help/2553549/all-the-tcp-ip-ports-that-are-in-a-time-wait-status-are-not-closed-after-497-days-from-system-startup-in-windows-vista-in-windows-7-in-windows-server-2008-and-in-windows-server-2008-r2
https://support.microsoft.com/en-us/help/2553549/all-the-tcp-ip-ports-that-are-in-a-time-wait-status-are-not-closed-after-497-days-from-system-startup-in-windows-vista-in-windows-7-in-windows-server-2008-and-in-windows-server-2008-r2
http://support.microsoft.com/zh-cn/help/2553549
http://support.microsoft.com/en-in/help/2553549
http://support.microsoft.com/zh-cn/kb/2553549
http://support.microsoft.com/en-in/kb/2553549