07-03-2010
Another added benefit from dropping SimpleCDN... overall performance has improved.
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LEARN ABOUT LINUX
plipconfig
PLIPCONFIG(8) PLIPCONFIG(8)
NAME
plipconfig - fine tune PLIP device parameters
SYNOPSIS
plipconfig interface
plipconfig interface [nibble NN] [trigger NN] [unit NN]
DESCRIPTION
Plipconfig is used to (hopefully) improve PLIP performance by changing the default timing parameters used by the PLIP protocol. Results are
dependent on the parallel port hardware, cable, and the CPU speed of each machine on each end of the PLIP link.
If the single interface argument is given, plipconfig displays the status of the given interface only. Otherwise, it will try to set the
options.
OPTIONS
nibble NN
Sets the nibble wait value in microseconds. Default is 3000.
trigger NN
Sets the trigger wait value in microseconds. Default is 500.
PLIP speed can in some cases be improved by lowering the default values. Values which are too low may cause excess use of CPU, poor inter-
rupt response time resulting in serial ports dropping characters, or in dropping of PLIP packets. Changing the plip MTU can also affect
PLIP speed.
NOTE
If you get no response it is far more likely the irq is wrong and needs setting with ifconfig. The few cases where the default parameters
will be too fast are those using very long cables. Something you should never do as the parallel port is not specified or designed for
driving long cable runs.
SEE ALSO
ifconfig(8)
BUGS
Non.
AUTHOR
John Paul Morrison, <jmorriso@bogomips.ee.ubc.ca>, <ve7jpm@ve7jpm.ampr.org>
17 February 1995 PLIPCONFIG(8)