Tcp states

There are 11 TCP states

"CLOSED",
"LISTEN",   
"SYN_SENT",    
"SYN_RCVD",
"ESTABLISHED",  
"CLOSE_WAIT",
"FIN_WAIT_1",
"CLOSING",
"LAST_ACK",    
"FIN_WAIT_2", 
"TIME_WAIT",