by Hi!
We are in the process of migrating our applications from a SparcServer
1000 to a new U450E box running Solaris 2.6. We have a Datability VCP200
terminal server of the same vintage as our SS1000. The VCP200 has one of
it's serial ports connected to a line printer and it acts as a TCP print
server accepting raw TCP connections on port (at the moment) 2001.
The VCP200 came with software several utilities including tcpsend which
interacts with the lp system and pipes the output to the VCP200.
Since Solaris 2.6 supports printing over raw TCP/IP natively, I decided to
use the netstandard method of printing. While setting up was dead easy
following the instructions. Performace has been iffy. The printer would
print full speed for 45 seconds, pause for 20, run for 45 seconds etc.
Playing with the timeout parameter using lpadmin I've reduced the pauses
to about 5 seconds. lpstat -o keeps claiming that the printer has
faulted. I'm just guessing here but this seems like a case of (lack of)
buffering on the VCP200 and netpr not backing off gracefully. Also print
jobs sent from other systems to this E450 occasionally get lost or not
printed. On the remote system e-mail is sent to the user stating a print
job has failed.
So is there a netpr parameter I can tweek or should I recompile the
tcpsend utility from Penril/Datability and use that instead of the
netpr/netstandard method?
Philip
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Philip Chee: Tasek Corporation Berhad, P.O.Box 254, 30908 Ipoh, MALAYSIA
Guard us from the she-wolf and the wolf, and guard us from the thief,
oh Night, and so be good for us to pass.
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