HP X.25 for OpenVMS Alpha and I64 Systems, V2.0
Software
Product
Description
PRODUCT NAME: HP X.25 for OpenVMS Alpha and I64 Systems, V2.0
SPD 47.37.16
DESCRIPTION
HP X.25 for OpenVMS enables appropriately config-
ured systems to connect to an X.25 Packet Switched
Data Network (PSDN) via an X.25 Relay node on the
same Local Area Network (LAN), via a DNA Phase IV
X.25 connector node, or directly using a synchronous
controller card for Alpha.
The product supports communication via PSDNs con-
forming to ITU/TSS recommendation X.25 1980, 1984,
and 1988, or to international standard ISO 8208. Refer
to the SUPPORTED PUBLIC NETWORKS section for
the list of supported PSDNs.
HP X.25 V2.0 supports OpenVMS Operating System
for Alpha version 8.2 and I64 version 8.2 and 8.2-1.
X.25 V2.0 for OpenVMS Alpha contains synchronous
device drivers and is required when using synchronous
communications options.
Note: HP X.25 for OpenVMS I64 does not support syn-
chronous device drivers and synchronous communica-
tions options.
HP X.25 for OpenVMS also provides the device drivers
and specific data link protocol support for HP’s syn-
chronous communications options for OpenVMS Alpha
systems.
HP X.25 for OpenVMS software allows the system to:
• Connect to other X.25 implementations using RFC
1613 (also known as XOT) via a TCP/IP wide area
network.
• Act as a Gateway Access Protocol (GAP) server for
Phase V GAP Clients
• Act as an X.25 Connector system for DECnet-Plus
X.25 Access systems
• Act as a packet–mode DTE connected to a supported
PSDN.
• Support ISO 8208 DTE to DTE point–to–point oper-
ation.
• Act as a packet–mode DTE connected to a LAN.
• Act as an X.25 Relay node conforming to ISO Tech-
nical Report 10029.
• Provide an X.25 sub–network for DECnet-Plus
CONS and CLNS operation.
• Provide a DEC–HDLC point–to–point data link for
DECnet-Plus CLNS operation.
• Act as a combination of the above, chosen on a per–
DTE basis.
The following restrictions of HP X.25 for OpenVMS soft-
ware should be noted:
• Phase IV GAP Clients (or access nodes) are not sup-
ported.
• P.S.I. Access (Phase IV) clients are not supported.
• DCE mode is supported for the purposes of point–
to–point operation as described in ISO 8208; DCE
mode for emulation of a PSDN is not supported.
• Use of the D bit in data packets is not supported.
• HP X.25 for OpenVMS I64 does not support syn-
chronous device drivers and synchronous communi-
cations options. The LAPB configuration is not sup-
ported on I64.
July 2005