As per Relevance of the word exchange, we have this rfc below:
Network Working Group C.
Request for Comments: 1079 Rutgers
December 1988
Telnet Terminal Speed
Status of This
This RFC specifies a standard for the Internet community. Hosts
the Internet that exchange terminal speed information within
Telnet protocol are expected to adopt and implement this standard
Distribution of this memo is unlimited
This standard is modelled on RFC 930 [1], the telnet terminal
option. Much of the text of this document is copied from that RFC
Most operating systems have provisions to keep track of the
(bit rate) of directly attached terminals and modems.
information is used to control various timing-dependent
processes, e.g., the number of padding characters used for delay
Some software also has user interfaces that are tuned differently
fast and slow terminals. The purpose of this option is to
similar information for telnet connections
1. Command Name and
TERMINAL-
Code = 32
2. Command
IAC WILL TERMINAL-
Sender is willing to send terminal speed information in
subsequent sub-negotiation
IAC WON'T TERMINAL-
Sender refuses to send terminal speed information
Hedrick [Page 1]
RFC 1079 Telnet Terminal Speed Option December 1988
IAC DO TERMINAL-
Sender is willing to receive terminal speed information in
subsequent sub-negotiation
IAC DON'T TERMINAL-
Sender refuses to accept terminal speed information
IAC SB TERMINAL-SPEED SEND IAC
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
Sender is stating his terminal speed. The code for IS is 0.
(See below.)
3.
WON'T TERMINAL-
Terminal speed information will not be exchanged
DON'T TERMINAL-
Terminal speed information will not be exchanged
4. Description of the
WILL and DO are used only to obtain and grant permission for
discussion. The actual exchange of status information occurs
option subcommands (IAC SB TERMINAL-SPEED...).
Once the two hosts have exchanged a WILL and a DO, the sender of
DO TERMINAL-SPEED is free to request speed information. Only
sender of the DO may send requests (IAC SB TERMINAL-SPEED SEND
SE) and only the sender of the WILL may transmit actual
information (within an IAC SB TERMINAL-SPEED IS ... IAC SE command).
Terminal speed information may not be sent spontaneously, but only
response to a request
The terminal speed information is an NVT ASCII string. This
contains the decimal representation of the transmit and
speeds of the terminal, separated by a comma, e.g.,
9600,100
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RFC 1079 Telnet Terminal Speed Option December 1988
No leading zeros may be included. No extraneous characters such
spaces may be included
The following is an example of use of the option
Host1: IAC DO TERMINAL-
Host2: IAC WILL TERMINAL-
(Host1 is now free to request status information at any time.)
Host1: IAC SB TERMINAL-SPEED SEND IAC
Host2: IAC SB TERMINAL-SPEED IS "1200,1200" IAC
(This command is 15 octets.)
5. Implementation
Many systems allow only certain discrete terminal speeds. In
cases it is possible that a speed may be received that does not
one of the allowed values. We suggest that you pick the
speed that is allowed, rounding in a "safe" direction. Safety
depend upon the use of the speed information. If it is being
for padding, it is best to round up, since too much padding is
than too little
[1] Solomon, M., and Wimmers, E., "Telnet Terminal Type Option",
RFC 930, January, 1985
[AAuthor's Address
Charles
Rutgers
Center for Computer and Information
Hill Center, Busch
P.O. Box 879
Piscataway, NJ 08855-0879
Phone: (201) 932-3088
Email: HEDRICK@ARAMIS.RUTGERS.
Hedrick [Page 3]
if you see any problems within the linking, don't worry be happy,
this is version 0.1 of the Relevance System and you gotta expect some crappy subroutines sometimes,
just be content we did not write this in Java, which would have made this "bigger and better" HAHAHHA.
RFC documents can be found at I.E.T.F.
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