The Three-Way Handshake

Send SYN

SEQ = 100

SYN Received

Send SYN

SEQ = 200

ACK = 100 + 1 (101)

Connection

established

Received SYN

and ACK

ACK = 201

SEQ = 101

Send data

Connection

established

Acknowledge

receipt of data

station A

station B

TIME

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