Analyzing Performance and Determining Problems › Display Trace Data for a Session

Display Trace Data for a Session

The NTS : Session Trace panel displays the following categories of trace information:

• Session Control (SC)
• Network Control (NC)
• Data Flow Control (DFC)
• Function Management Data (FMD)

To display trace data for a session

1. Enter T beside a session in the NTS : Session List.

   The NTS : Session Trace panel appears.

2. (Optional) To display a trace record in more detail, enter S next to an entry in the list.
3. (Optional) To display a trace record in dump format, enter D next to an entry in the list.

   Note: For information about the fields and options displayed on this panel, press F1 (Help).

Analyze a Trace

Analyzing a trace lets you view the following:

• A breakdown of the transmission headers (THs) and response headers (RHs)
• A hexadecimal display of all the RHs, THs, and RU data
• Sense data for negative response PIUs

The NTS : Trace Analysis panel displays a detailed explanation of the trace record selected. The display has the following sections:

• Transmission header
• Request/response header
• Request/response unit

Each section of the trace record is shown in hexadecimal format. The RU is also shown in character format. The meaning of significant fields is displayed. If the selected trace record is for a negative response, then the sense code, category, and description are displayed.

To perform an analysis of a trace

1. Enter S against a record in the NTS : Session Trace selection list.

   The NTS : Trace Analysis panel appears.

2. (Optional) To display specific trace record types, for example, BIND, ACTLU, and negative responses, in more detail, press F8 (Forward). If more information is available, a message appears at the bottom of the panel. You can scroll through the trace records by pressing F10 (Prev) to display the details of the previous record and F11 (Next) to display the details of the next record.

Display a PIU Dump

You can also display a PIU dump for a selected record. A PIU dump displays the full TH, RH, and RU in both hexadecimal and character formats.

To display a dump of the record

1. Enter D against a record in the NTS : Session Trace selection list.

   The NTS : Trace PIU Dump panel appears. You can scroll through the trace records by pressing F10 (Prev) to display the dump of the previous record and F11 (Next) to display the dump of the next record.