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Chapter 7 P2P Service
7.7.5 TCP user frame definition client
Client
Server
Transmission port : n >1024
Destination port: user’s
assignment
①
SYN
Transmission port: n >1024
Destination port : user’s
assigment
Connection
②
SYN ACK
Connection
③
ACK
User frame
definition
(Client)
④
PUSH ACK
User frame
definition
(Server)
⑤
PUSH ACK
⑥
ACK
●
●
●
⑦
FIN ACK
Disconnection
⑧
ACK
⑨
RST
Disconnection
Time
Time
[Figure 7-48] TCP user frame definition client
(1) TCP user define frame client provides a function sending the registered frame as the sending block to the user’s assigned
port.
(2) In case of operation condition –‘ON’ in block, TCP user define frame client does ①SYN, and send the registered frame in
sending block to the port.
(3) In case of UDP user defined frame client does not do ①SYN, it sends the frame to the port when the operation condition
is ‘ON’.
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