Tony writes:

> You should note there are several network protocols used.   We currently
>  use NS/VT which I believe is more efficient than TELNET - especially
>  when the terminal is in Character rather than block mode.

This is more urban legend that God's Own Truth, although like most urban
legends it has a grain of truth to it.

In block mode there is absolutely no difference between in bandwidth
consumption in telnet and ns/vt, other than how the packets are constructed.

Similarly the same is true for all data transmissions originated from the
host sent to the terminal. They're absolutely the same.

The only place where the protocols are different is in the material typed at
the keyboard by you. NS/VT waits until you hit a carriage return and transmits
everything you've typed in the current line as one packet. Telnet transmits
each key stroke as its own individual packet.

But if you think about it for just a second, that difference makes virtually
no difference in the grand scheme of things. You type just a few characters
and hit CR, and the host floods your screen with output in response. You type a
few more characters, and then the host floods your screen again in response.

In virtually all practical use, there's going to be much less than a 1%
difference in bandwidth consumption.

Wirt Atmar

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