OSI/FTAM Programming Reference Manual

Introduction to NonStop OSI/FTAM
HP NonStop OSI/FTAM Programming Reference Manual—528611-001
1-6
Architectural Overview
complete discussion of this interface, refer to the OSI/FTAM Configuration and
Management Manual.
Figure 1-2 also shows the following architectural components:
•
The Guardian file system. The files to be accessed on the local NonStop system
reside here.
•
OSI underlying services, including OSI/AS, OSI/TS, and TLAM or X25AM.
Together, these underlying subsystems provide the necessary protocol to
communicate with remote computer systems across an OSI network.
•
The OSI communications network, which interfaces with either the HP TLAM or
X25AM software. TLAM implements the 802.3 communications protocol for an OSI
network. The X25AM product implements the X.25 communications protocol.
Figure 1-2. NonStop FTAM Architectural Overview
VST0102.vsd
Remote
FTAM
Initiator
Remote
FTAM
Responder
Communications Network
OSI/AS
OSI/TS
TLAM or X25AM
Application
Programmatic
Interface
NonStop FTAM
Guardian
File System
Management
Interface