PAM Configuration and Management Manual

PAM Configuration and Management Manual—523349-003
2-1
2 Introduction
This section provides an overview of PAM and of the facilities for managing PAM. It
includes these topics:
•
Overview of Features and Architecture explains the role of PAM within the system
and describes the features, standards compliance, and components of PAM.
•
Distributed Systems Management (DSM) Facilities on page 2-6 provides an
overview of all aspects of PAM subsystem management.
•
Startup Parameters on page 2-12 describes how to start the PAM subsystem.
Overview of Features and Architecture
PAM provides a set of standard programmatic interfaces that allows you to write
applications without regard to the underlying physical local area network (LAN). These
standard interfaces eliminate the need for separate sets of code for specific LAN types.
The PAM subsystem provides access to token-ring or Ethernet LANs on a NonStop
S-series system and an Integrity NonStop NS-series system.
PAM Features
PAM provides these features:
•
A port interface that applications can use by making file-system procedure calls.
•
A Subsystem Programmatic Interface (SPI) for the SCF and management
applications.
•
Isolation of the port interface so that it is independent of the underlying hardware
and software subsystems for the LAN attached to the system.
•
Backward compatibility with the HP Tandem LAN Access Method (TLAM) I/O
processes that provided the port interface on NonStop K-series systems, allowing
applications that used the port interface on NonStop K-series systems to migrate to
NonStop S-series systems and Integrity NonStop NS-series systems.
•
Access to Ethernet and token-ring networks through the ServerNet LAN Systems
Access (SLSA) subsystem. (For more information about the SLSA subsystem and
E4SAs, FESAs, G4SAs, and TRSAs, see the LAN Configuration and Management
Manual.)
•
Support for SNAX to access the token-ring adapter.
Supported Protocols
PAM supports the IEEE 802.2 Logical Link Control standard (LLC Types 1 and 2),
IEEE 802.5 token-ring, and IEEE 802.3 Ethernet link-level interconnections to various
LANs. The Ethernet 4 ServerNet adapter (E4SA), Fast Ethernet ServerNet adapter
(FESA), Gigabit 4 ServerNet adapter (G4SA), and the Token Ring ServerNet adapter