TCP socket status

TCP socket explanation status meaning

Closed does not use this socket

Listen socket is listening for inbound connection

Syn_sent socket is trying to establish a connection

Syn_received is in the initial synchronization state of the connection.

The established connection has been established.

Close_wait remote socket closed: waiting to close this socket

The fin_wait_1 socket is closed and the connection is being closed.

The closing socket is closed, the remote socket is closed, and the close confirmation is temporarily suspended.

Last_ack remote socket already exists, waiting for confirmation of local socket close

Fin_wait_2 socket closed, waiting for remote socket to close

Time_wait the socket has been closed, waiting for the remote socket to close Transfer