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The following table details PU 2.1 Node traces.
| Trace option | Activity traced for the SnaServer (PU 2.1 node). |
|---|---|
| Internal Messages | Messages between the SnaServer (PU 2.1 node) and the SNA Manager. |
| 3270 Messages | Messages between the PU 2.1 node and all 3270 client computers (3270 emulators and/or LUA programs). |
| Data Link Control | Messages between the PU 2.1 node and link services. |
| SNA Formats | Data link control messages that are in Host Integration Server formats. Understanding such messages requires knowledge of Host Integration Server formats and protocols. |
| LU 6.2 Messages | Messages between the PU 2.1 node and the APPC DLL. |
See Also
Tracing SNA APIs
Tracing SnaBase
Tracing Link Services
Tracing for TN3270
Tracing for TN5250
Tracing Servers Components