HP-UX TN3270 Administration Guide

Using TN3270 Tracing Facilities

Trace File Formats

Chapter 564

Trace File Formats

This section provides examples and information about how to interpret

the trace output for the different trace types.

Common File Information

The trace data for a single message can occupy more than one line in the

trace ﬁle. Each individual message is preceded by a horizontal line

indicating the time at which the trace entry was made. The following

information is common to both TN3270 emulation program tracing and

HLLAPI tracing:

• The 5-digit process ID of the component being traced appears at the

start of each line. The process ID is followed by an indicator of the

type of component being traced (EHLL for a HLLAPI application, or

3270 for the 3270 emulation program).

• Message data is shown in the following formats in separate columns

to ensure that a character string in the message data appears as

readable text in either the EBCDIC or the ASCII column according to

its character set:

— Hexadecimal

— Interpreted as EBCDIC

— Interpreted as ASCII

File Information for TN3270 Message Tracing

TN3270 provides the following types of message tracing for the TN3270

program:

Internal

Traces messages internal to TN3270. These messages

are used primarily by TN3270 support personnel, who

may ask you to provide trace ﬁles to assist them in

diagnosing problems with TN3270.

TCP/IP data

Traces the messages sent over TCP/IP to the host in