Chapter 6 Socket Interface Communication
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90
Client side
(Active open)
Closed state
Active open
Connection established
Data transmission
Data transmission
Data transmission
Data transmission
Close request
Closed state
Figure 6-4 TCP Connection Communication Procedure (Outline)
Connection establishment
request
ACK (acknowledge) response
Data transmission
ACK (acknowledge) response
Data transmission
ACK (acknowledge) response
Data transmission
ACK (acknowledge) response
Data transmission
ACK (acknowledge) response
Close request
Close request
Server side
(Passive open)
Closed state
Passive open
Connection established
Data reception
Data reception
Data reception
Data reception
Close request
Closed state
Ethernet module User's Manual