Introduction to Networking for NonStop S-Series Servers
Open Systems Interconnection (OSI) Network 
Connections
Introduction to Networking for HP NonStop S-Series Servers—520670-005
8-7
FTAM Implementation
FTAM Implementation
HP NonStop OSI includes an implementation of the ISO standard for FTAM. HP 
NonStop OSI/FTAM provides a low-level programmatic interface that supports the vast 
majority of FTAM primitives. It also supports access to structured text files, access to 
rows in Structured Query Language (SQL) tables, and reading of directory files (as 
defined by the National Bureau of Standards, or NBS).
Message Handling Systems (X.400)
HP NonStop OSI includes an implementation of the 1988 version of ITU–T (formerly 
CCITT) Recommendation X.400 and the ISO standard for Message Handling Systems 
(MHSs). HP NonStop OSI/MHS is suited to large-scale messaging networks, allowing 
exchange of messages among diverse proprietary messaging systems, X.400-defined 
User Agents (UAs), and applications such as electronic data interchange (EDI) and 
electronic funds transfer (EFT). OSI/MHS includes interfaces that give Local User 
Agents (LUAs) and Remote User Agents (RUAs) access to an X.400 Message Store 
(MS), and OSI/MHS also provides a standards-based gateway programmatic interface 
(GPI). 
HP NonStop OSI/MHS has features that distinguish it from some other MHS 
implementations. For example, message-transfer functions are performed by multiple 
identical processes that work in parallel for load-balancing and high throughput. In 
addition, OSI/MHS includes sophisticated management facilities that provide not only a 
wide range of configuration options but also specific support for accounting and billing 
applications.
HP provides a graphical X.400 message-management solution with the 
ActionView.400 product from Insider Technologies Limited. ActionView.400 is a 
client-server application for HP NonStop S-series servers and IBM-compatible personal 
computers (PCs) using Microsoft Windows. Its modules provide system and 
performance monitoring, configuration management for OSI/MHS objects, 
administrative functions such as chargeback for system usage, and operator alerts 
when user-defined thresholds are exceeded.
Familiar Application Program Interface (API)
The APIs to the upper layers of OSI and the FTAM product consist of procedures that 
correspond directly to primitives defined in the OSI standards. This feature makes it 
convenient to adapt existing applications to use HP NonStop OSI and to develop 
application services to run, with minor interface differences, on various kinds of 
systems.
HP Fundamentals and Software
HP NonStop OSI products offer fundamental HP software characteristics such as fault-
tolerance and modular growth. For example, your OSI applications will continue to 
work even through a failure in one of the processors in which an HP NonStop OSI 










