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	 val-
       ues.   Values  which  are  too  low  may cause excess use of CPU, poor
       interrupt 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 parame-
       ters 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,	       ,
       




			       17 February 1995			PLIPCONFIG(8)

UNIX/Linux commands referenced on this page:

1. which
2. time
3. more
4. as