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This chapter explains how to use SNAP-IX TN3270 trace facilities to collect diagnostics data and how to produce trace output.
SNAP-IX TN3270 supports the following types of tracing:
Traces all the parameters that the HLLAPI application supplies to the HLLAPI library and all the parameters that the HLLAPI library returns to the application. For more information, see Controlling Tracing of HLLAPI Applications.
Traces all the data sent from the host to the TN3270 emulation program and from the TN3270 emulation program to the host. This tracing can also include SNAP-IX TN3270 internal control messages. For more information, see Controlling Tracing of the TN3270 Program.
The relationship between SNAP-IX TN3270 components and the boundaries between components at which tracing can be activated is shown in Relationship between SNAP-IX TN3270 Components and Tracing Boundaries .
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