TCP/IP Configuration and Management Manual

Configuring the NonStop TCP/IP Subsystem
TCP/IP Configuration and Management Manual—427132-004
3-19
Configuration 3: Startup Files for Two Hosts Using
an X25AM-Based Connection
SCF is invoked to run the commands contained in the command file X25SUBU1. This
file contains the commands needed to alter line attributes and add SUs.
You must set most attributes to values that depend on the type of the network and the
type of services you have contracted for. Refer to the X25AM Configuration and
Management Manual for a discussion of the most commonly used attributes.
SRCADDR specifies the source address of the line. Within an X.25 network, an
X25AM I/O process acts as Data Terminating Equipment (DTE), while the network
service provider acts as Data Circuit Equipment (DCE). Thus, in this sample
configuration, FRAMEMODE is set to DTE in the X25AM configuration files of each of
the NonStop hosts (see X25SUBU2 in Configuration of an X.25 Connection for \NY).
The following command sets attributes for this line's connection to an X.25 network:
ADD SU #TCPIP1, devtype (9,0), protocol ptp, recsize 1024
The NonStop TCP/IP process requires the attribute devtype (9,0), protocol ptp, and
recsize 1024.
Command Description
ALLOW ALL
instructs SCF to permit all errors to occur without
exiting the command file.
ASSUME LINE $X250
sets the assumed object type to LINE (specifically
$X250 is the device name of the X.25 line
connected to the X.25 network).
By setting the assumed object to $X250, all
subsequent commands apply to this object, unless
explicitly specified otherwise.
The command sets attributes for this line's
connection to a PDN:
ALTER , NETID X25xa, SRCADDR
"00000011300000", &
FRAMEMODE DTE, CALLINGADDR ON,
SVCRANGE (1, 128)
Note. In laboratory test situations, a real X.25 network might not exist to provide DCEs. If \LA
and \NY were connected in this way, one of them would need to function as a DCE. Thus, you
would specify FRAMEMODE DCE for either \LA or \NY.
Note. You should not configure the X.25 SU attribute DESTADDR. The NonStop TCP/IP
process programmatically sets the attribute DESTADDR prior to requesting that an X.25 call be
made
. You can, however, specify ADDRMAP in your NonStop TCP/IP configuration file (see
TCPSUBU1
). ADDRMAP contains an entry for the remote IP address and the remote source
address.