OSI/AS Configuration and Management Manual

OSI/AS Configuration and Management Manual—424119-001
8-1
8
Troubleshooting Guide
This section contains general troubleshooting information; it does not contain all
possible combinations of what can go wrong in an OSI network. It includes the
following major topics:
•
Using EMS as a Troubleshooting Tool on this page
•
Using the CHECK SU Command on page 8-2
•
Using TRACE and PTrace Commands on page 8-5
•
An Approach to Troubleshooting on page 8-8
•
Application Program Interface (API) on page 8-9
•
TAPS Process on page 8-16
•
TSP Process on page 8-35
•
NSP Process: X25AM on page 8-51
•
NSP Process: TLAM on page 8-64
•
NSP Process: PAM on page 8-67
•
Getting Help on page 8-68
Section 7, OSI/AS Subsystem Description
, provides background information on the
interaction of the OSI/AS subsystem components, which is very useful when
troubleshooting.
Using EMS as a Troubleshooting Tool
EMS collects and distributes all errors reported by all subsystems running in your
Compaq system, including errors reported by the following:
•
SCF
•
OSI/AS-specific SCF
•
SPI
•
OSI/AS-specific SPI
•
Your management application
•
Your user application
•
Underlying subsystems
Individual messages, or groups of messages, can provide important clues and specific
information for diagnosing problems.
EMS filters are a useful mechanism for selecting messages, or groups of messages, of
special interest. Because EMS filters are easy to write, they can quickly be written or
tailored to select messages pertaining to a particular problem. For more information, see
Managing Event Messages
on page 5-1; Appendix B, Examples of EMS Filters; and the
Event Management Service (EMS) Manual.