# RQ = Incoming request sent to listening remote server

# RS = Response sent from local server to remote server
#      OR remote server to local server "flagging"
#      that the socket message was accepted by the server.
#     (Context of usage shown below)

# ST = Status of request at time of processing. More often than not,
#      this would be sent asynchronously from local server to remote
#      server.

Remote    Local
------    -----

RQ    --> 

      <-- RS

      <-- ST

RS    -->