Hello Ian!

Monday February 10 1997 16:31, Ian Smith wrote to Steven Anderson:

 > adding UDP and PPP headers .. at 28800 bps, no compression, sending that
 > would take:
 >    75 * 10 / 28800 = 26 milliseconds.  At 33600, 75 * 10 / 33600 = 22 ms.

 > So both ways you might expect an 8 ms improvement due to the higher rate,
 > which is not really a large part of the usual 200-400 ms ping times .. most
 > of which is fighting its way through the stack of software layers.

But also modem latency. When using compression, the modem would need to
wait a little while after a packet in case anything else turns up which
could be compressed with it; otherwise compression effectiveness is way
down.


Regards,
Hamish

--- GoldED/P32 2.42.G1219+