Long description

The figure shows a user sending a message through a computer to another person. The following steps show how the message is sent through the T C P protocol and is received by the receiver’s computer.

Step 1: Original message broken into numbered packets.

Original message: Thou map of woe comma that thus dost talk in signs.

Packet 1: Thou map of woe comma

Packet 2: that thus dost

Packet 3: talk in signs.

Step 2: For each T C P packet sent, an “A” C K (acknowledgement) must be received back. Three “A” C Ks are sent back to the sender.

“A” C K 1: Packet 1: Thou map of woe comma

“A” C K 3: Packet 3: talk in signs.

“A” C K 2: Packet 2: that thus dost

Step 3: Eventually, sender will resend any packets that didn't get an “A” C K back.

Step 4: Message reassembled from packets and ordered according to their sequence numbers. Received message: Thou map of woe comma that thus dost talk in signs.