1.CLOSED:
2.LISTEN:
3.SYN_RCVD:
4.SYN_SENT:
5.ESTABLISHED:
6.FIN_WAIT_1:
7.FIN_WAIT_2:
8.TIME_WAIT:
9.CLOSING:
10.LAST_ACK:
TCP协议状态
原文：http://www.cnblogs.com/yemanling/p/4504621.html
