Transport Control Protocol

LISTEN: Local TCP has received a Passive Open and is waiting for a SYN. Upon entering state, allocate/initialize a TCB. Ignore RST since no connection is open. Reply to SYN with ACK and set SYN_RECEIVED state . SYN_SENT: Local TCP has sent a SYN and is awaiting an ACK. Process incoming SYN with or without Data, ACKs. ................
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