PAM Programming Manual
PAM Programming Manual—142482
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About This Manual
This manual describes the programmatic interface to the Port Access Method (PAM) 
subsystem running on Himalaya S-series servers. The PAM subsystem provides 
backward compatibility for applications that used the port interfaces provided on 
Himalaya K-series systems by the Tandem LAN Access Method (TLAM).
 This manual describes how to write applications that use the file-system and message-
system interfaces.
Who Should Use This Manual
This manual is intended for programmers writing new applications that use the port 
interface on S-series servers or migrating applications that previously used the port 
interface of TLAM on K-series systems.
What’s in This Manual
Table 1 summarizes the contents of this manual. 
Other Manuals
Depending on the tasks you are performing, you might also need the following manuals:
•
PAM Management Programming Manual
•
Guardian Procedure Calls Reference Manual
•
Guardian Procedure Errors and Messages Manuall
•
PAM Configuration and Management Manual
•
LAN Configuration and Management Manual
Table 1. Summary of Contents
Section Title This section . . .
1 Introduction Describes the components of the Port 
Access Method (PAM).
2 File-System Procedures Provides an overview of the file-system 
procedure calls an application uses to 
interact with PAM.
3 Link-Level Interfaces Describes the formatting libraries used 
in an application to access an Ethernet 
or Token Ring LAN.
A File-System Error Codes
Provides general descriptions of file-
system error codes that could be 
returned to an application while it is 
interacting with the PAM subsystem.
B Link-Level Programming Examples
Provides code examples in TAL, C, and 
Pascal.










