Subj : Telnet/Rlogin speed?
To   : Kirkman
From : Digital Man
Date : Tue May 22 2018 04:02 pm

  Re: Telnet/Rlogin speed?
  By: Kirkman to Digital Man on Mon May 21 2018 09:21 pm

 >   Re: Telnet/Rlogin speed?
 >   By: Digital Man to Kirkman on Mon May 21 2018 04:50 pm
 >
 >  DM> So even if you could somehow test the connection and determine its
 >  DM> speed upon connect, it would likely change (up and down) later. RLogin
 >  DM> does include an optional terminal speed field, but its not really
 >  DM> relevant or useful over the Internet.
 >
 > I guess what I'm looking for is not necessarily an exact bits-per-second,
 > but just the difference between someone who's connecting over telnet with a
 > Lantronix at 57.6k or slower, versus someone using a plain terminal at
 > normal telnet speeds.

But there's no such thing as "normal telnet speeds". :-(

 > Is there an ANSI sequence I could send through Javascript that returns an
 > automatic response from the remote terminal, and I could time that?

There's the ANSI cursor position report - but that's not a lot of data sent
back by the client: http://ansi-bbs.org/ansi-bbs2/control_seqs/

                                            digital man

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