Software Product Description

This Software Product Description (SPD) details X.25 V1.1 for OpenVMS Alpha Systems, a layered product designed to enable OpenVMS Alpha systems to connect to X.25 Packet Switched Data Networks (PSDNs).

Key features include:

• Standard Conformance: Complies with ITU/TSS (X.25, X.3, X.28, X.29) and international ISO standards.
• Connectivity: Supports communication via PSDNs using Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs), as well as operation over LAN (via LLC2 protocol) or WAN synchronous connections.
• Functionality: Provides process-to-process (via QIO interface) and process-to-terminal (X.29) communication, DECnet/OSI connectionless/connection-oriented network services, and an X.25 Mail utility.
• Management & Security: Includes Network Control Language (NCL) for management, a Common Trace Facility (CTF) for troubleshooting, and comprehensive security controls based on DTE number, user/process, or connection type.
• Requirements: Supported processors include various Alpha and AlphaServer models. Installation requires specified synchronous communication devices (e.g., integral SCC, WANcontroller 720, DNSES, or PBXDI-Ax).

The document also provides ordering information, lists of supported public networks globally, and details on licensing, including upgrade paths for existing Digital X.25 Client customers.