RFC 1079 (rfc1079) - Page 2 of 3

Telnet terminal speed option

RFC 1079              Telnet Terminal Speed Option         December 1988


      IAC DO TERMINAL-SPEED

         Sender is willing to receive terminal speed information in a
         subsequent sub-negotiation.

      IAC DON'T TERMINAL-SPEED

         Sender refuses to accept terminal speed information.

      IAC SB TERMINAL-SPEED SEND IAC SE

         Sender requests receiver to transmit his (the receiver's)
         terminal speed. The code for SEND is 1. (See below.)

      IAC SB TERMINAL-SPEED IS ... IAC SE

         Sender is stating his terminal speed. The code for IS is 0.
         (See below.)

3. Default

      WON'T TERMINAL-SPEED

         Terminal speed information will not be exchanged.

      DON'T TERMINAL-SPEED

         Terminal speed information will not be exchanged.

4. Description of the Option

   WILL and DO are used only to obtain and grant permission for future
   discussion. The actual exchange of status information occurs within
   option subcommands (IAC SB TERMINAL-SPEED...).

   Once the two hosts have exchanged a WILL and a DO, the sender of the
   DO TERMINAL-SPEED is free to request speed information.  Only the
   sender of the DO may send requests (IAC SB TERMINAL-SPEED SEND IAC
   SE) and only the sender of the WILL may transmit actual speed
   information (within an IAC SB TERMINAL-SPEED IS ... IAC SE command).
   Terminal speed information may not be sent spontaneously, but only in
   response to a request.

   The terminal speed information is an NVT ASCII string.  This string
   contains the decimal representation of the transmit and receive
   speeds of the terminal, separated by a comma, e.g.,

         9600,100



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