gtps2m3lACF/SNA Data Communications Reference

Diagnostic Aids

TPF/SNA diagnostic and error processing is consistent with TPF philosophy; recover from errors as quickly as possible and save as much information as possible. TPF automatically records error information. This helps identify the causes of frequent temporary errors. Users can optionally request TPF tracing and testing services. Whenever possible, TPF avoids terminating sessions or deactivating resources.

The TPF operator receives a message when a permanent error is detected. The message specifies the name of the failing resource, the time that the error occurred, and text to describe the error. These steps should be followed to accumulate adequate diagnostic documentation:

Deactivating the affected part of the network may temporarily circumvent the problem. However, users should maintain a complete description of the network as it existed before the error.