Expand Configuration and Management Manual (H06.21+, J06.10+)

Configuring Expand-Over-X.25 Lines
Expand Configuration and Management Manual — 529522-013
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X25AM Line-Handler Process
X25AM Line-Handler Process
The Expand-over-X.25 line-handler process uses the services of an X25AM
line-handler process to provide access to X.25 packet-switched data networks
(PSDNs). Each X25AM line-handler process controls a single data communications
line and supports both permanent virtual circuits (PVCs) and switched virtual circuits
(SVCs). The X25AM line-handler process associated with the Expand-over-X.25
line-handler process must be configured and started before the Expand-over-X.25
line-handler process can begin exchanging data over an X.25 connection.
For more information on configuring X25AM line-handler processes, see the X25AM
Configuration and Management Manual.
QIO Subsystem
QIO is a mechanism for transferring data between processes through a shared
memory segment. The QIO subsystem is preconfigured and started during the system
load sequence. The QIO subsystem must be started and running before Expand
line-handler processes can be started.
For more information on the QIO subsystem, see the QIO Configuration and
Management Manual.
Wide Area Network (WAN) Shared Driver
The WAN shared driver is a set of library procedures that is bound with each input-
output process (IOP) that uses a ServerNet wide area network (SWAN) concentrator.
The WAN shared driver is a component of the WAN subsystem. The WAN subsystem
is preconfigured and started during the system load sequence.
For more information on the W
AN subsystem, see the WAN Subsystem Configuration
and Management Manual.
NonStop TCP/IP Process
The NonStop TCP/IP subsystem provides TCP/IP data communications connectivity.
NonStop TCP/IP processes are used by LAN adapters and SWAN concentrators. The
NonStop TCP/IP processes that support the adapter and SWAN concentrators are
preconfigured and started during the system load sequence.
For more information on the NonStop TCP/IP and the NonS
top TCP/IPv6 subsystems,
see the TCP/IP Configuration and Management Manual and the TCP/IPv6
Configuration and Management Manual.
For more information on the LAN adapters, see the LAN Configuration and
Management Manual.
Note. You must obtain a subscription to an X.25 value-added network (VAN) or have access to
a dedicated X.25 network, to use an X.25 connection.