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PLIPCONFIG(8)	      Linux System Administrator's Manual	 PLIPCONFIG(8)

NAME
       plipconfig - fine tune PLIP device parameters

SYNOPSIS
       plipconfig interface [nibble NN] [trigger NN]
       plipconfig [-V] [--version] [-h] [--help]

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 sta‐
       tus  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  val‐
       ues.  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>

net-tools			  2008-10-03			 PLIPCONFIG(8)

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