HP X.25/9000 User's Guide HP-UX 11i v3 (5900-1523, August 2011)

System requirements
Because each printing device requires system resources, HP recommends that the kernel parameters
be set to following values (or greater):
• MAX_PAD_PR – is the number of PAD printers to be configured.
• NPTY – is 60 + MAX_PAD_PR
• MAXURPC – is 50 + (3 x MAX_PAD_PR)
• NPROC – is 20 + ((8 x MAXUSERS) + NGCSP + (6 x MAX_PAD_PR))
The following kernel parameters should not be modified and should retain the values indicated
below:
• NFILE =(16 x (NPROC + 16 + MAXUSERS)/(10 + 32+(2 x NPTY))
• NINODE = ((NPROC + 16 + MAXUSERS) + 32 + (2 x NPTY) + (SERVER_NODE x 18 x
NUM_CODES))
For more information on dependencies, refer to your System Administration Tasks manual.
NOTE: See the man pages for x29printd for its syntax and parameters.
Configuring remote PAD printers
You must configure each remote PAD printer by specifying parameters in the printer section of the
/etc/x25/x29hosts file (see “X.25 Configuration files and examples” (page 144) for an example
x29hosts file). An example printer section is shown below.
printer {
device printer1
name interface0
remote_x121 408555111201
cud dbad
cug 02
logging 1
reverse_charge enable
x3 hp_printer
}
where:
device Mandatory. This is the name of the device file that will be located in /dev/
x29/. It is created by x29printd and will be symbolically linked to a
slave PTY in /dev/pty/. The device file must also be configured in the
spooler system using lpadmin and the -v option (see “Configuring the
UNIX line-printer spooler for x29printd” (page 101) below).
name Mandatory. This is the name of the programmatic interface that will be
used for call setup. There is no default for this entry. This name must match
the programmatic access name (also called name) specified in the x25init
X.25 configuration file.
remote_x121 Mandatory (no default). This is the X.121 address of the PAD device plus
the subaddress of the printer. This address is required for calls to be
initiated. Only digits 0 through 9 are legal.
cud Optional. This is the Call User Data (CUD) appended to the protocol ID
(0x01000000) for any call request packets sent to this printer. Only strings
of 12 characters or less are permitted.
cug Optional. This is the Call User Group (CUG) that will be allowed access
to the printer. Only integers are permitted.
100 PAD services