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Comment by ali_piccioni | Hacker News Reader

The information can be compressed into a table that shows what knowledge (columns) each party gain (rows) at each stage (cells) of the connection.

            Can         Can
           Transmit  | Receive
  
 Client    SYN-ACK     SYN—ACK            
 Server    ACK         SYN

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Is your bottom row backwards? Surely the server learns that the client can transmit when it receives a SYN and that it must have received the SYN-ACK when the ACK comes back.

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