TCP state

Represents the different states of a TCP connection.

This enum defines the possible states a TCP connection can be in during its lifecycle, from establishing a connection to closing or being in a waiting state

Entries

State	Description
UNKNOWN	Represents an unknown state of the TCP connection
CLOSED	Represents a closed TCP connection, either because it was closed normally or due to an error
LISTEN	Represents a TCP socket that is listening for incoming connection requests
SYN_SENT	Represents the state where a TCP client has sent a SYN message to initiate a connection
SYN_RECV	Represents the state where a TCP server has received a SYN message and is waiting to establish a connection
ESTABLISHED	Represents the state where the TCP connection has been successfully established and data can be transmitted
FIN_WAIT_1	Represents the state where the connection is being closed, and a FIN message has been sent to the other side
FIN_WAIT_2	Represents the state where the connection is being closed, and the peer has acknowledged the FIN message
CLOSE_WAIT	Represents the state where the local TCP stack has received a FIN from the peer and is waiting to close the connection
CLOSING	Represents the state where both sides are trying to close the connection simultaneously
LAST_ACK	Represents the state where the local TCP stack has sent a FIN and is waiting for the final acknowledgment from the peer
TIME_WAIT	Represents the state where the connection is waiting for a timeout to ensure the remote side has received the final acknowledgment
NONE	Represents the absence of a valid TCP state, typically used as a placeholder

These entries are according to the RFC 793 document