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)
Check Out this Related Man Page
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)
I get my CPU speed use pstat APIs
use this program serach google and just test it
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/pstat.h>
#define CPU_ID 0
#define HZ_PER_MHZ 1000000
int main()
{
struct pst_processor pst;
union pstun pu;
... (0 Replies)
I have 2 nodes using AIX 5 and HACMP
My net guru tells me he needs to retire a rack, but some of my cables are plugged into a patch panel in the rack and I need to swap my servers to new cables.
I was hoping to do an on-the-fly swap quickly, but not sure how HACMP will respond to a cable... (1 Reply)
Hi,
Someone told me how to check the remote switch port's speed setting on the other end of the cable, from linux. I forgot it.
Anyone knows? I checked dmesg, ethtool (haven't checked this out thoroughly) , no luck.
thanks,
Marc (1 Reply)