OSI/AS SCF Reference Manual

OSI/AS SCF Reference Manual—424121-001
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OSI/AS Trace Facility
This section contains the following topics:
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Introduction on this page
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Structure of the OSI/AS Processes on page 3-3
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PTrace Commands on page 3-6
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Trace Record Displays on page 3-22
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Trace Record Formats on page 3-23
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Shared Trace Records on page 3-25
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ASN.1 Trace Records on page 3-34
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ACSE Trace Records on page 3-40
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L6 Trace Records on page 3-53
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L5 Trace Records on page 3-75
Introduction
The OSI/AS trace facility helps you diagnose different problems that can occur in the
operation of Compaq OSI/AS processes. You could, for example, experience problems
between your Compaq system and other vendor’s systems as a result of incompatibilities
in OSI stack implementations, incorrect configuration parameters, and so on.
The OSI/AS trace facility is made up of two parts:
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The OSI/AS SCF TRACE command which collects trace information on disc
•
The PTrace commands that format, display and examine the previously collected
trace information
In addition to using the OSI/AS trace facility, you may also need to trace the activities of
the lower layers to solve some problems. You may also need to use the OSI/TS trace
facility, the X25AM trace facility, or the TLAM trace facility (for D-series releases) or
the PAM trace facility (for G06 and above releases).
Deciding what you want to trace requires some knowledge of:
•
The OSI/AS process structures: The following few pages describe the OSI/AS
process structures as they relate to obtaining trace information.
•
The APS procedures: Many trace records contain fields with the same names and
contents as APS procedure parameters, therefore familiarity with the structure of an
application program that uses APS procedures is helpful. The OSI/AS Programming
Manual describes the APS procedures.