gtpc1m7mTransmission Control Protocol/Internet Protocol

Displaying the IP Trace Table Online

Use the ZIPTR command to display the IP trace table online. You can display all of the trace table or only part of the trace table. You can also display formatted entries in the IP trace table.

Enter the ZIPTR command with the ALL parameter specified to display all of the IP trace table entries. When you display all of the trace table entries, the oldest entry (that is, the entry with the oldest time stamp) is displayed first, followed by the next oldest entry, and so on. Therefore, the last entry displayed is the newest entry in the IP trace table.

You can also enter the ZIPTR command with the num parameter specified to specify the number of IP trace table entries that you want to display. When you do this, the newest entries in the trace table are displayed.

Remember that the IP trace facility can continue to store new data in the IP trace table while you are displaying entries from the trace table. Therefore, the newest entries continue to change as more data is stored in the trace table. For example, if you display 11 entries from the IP trace table, wait a few seconds while data continues to flow, and then you display 11 entries from the IP trace table again, the 11 entries displayed the second time are different from the 11 entries displayed the first time.

When you enter the ZIPTR command to display the IP trace table, the last line of the information displayed tells you how many entries are in the trace table.

There are two formats in which you can display the IP trace table. You can create a compacted display of the trace table or a formatted display of the trace table.

Creating a Compacted Display of the IP Trace Table

To create a compacted display of the IP trace table, enter the ZIPTR command without the FORMAT parameter specified.

In the compacted display of the IP trace table, each trace table entry is displayed on a separate line and only part of the user data being traced is included.

Creating a Formatted Display of the IP Trace Table

To create a formatted display of the IP trace table, enter the ZIPTR command with the FORMAT parameter specified.

In the formatted display of the IP trace table, each trace table entry is formatted and all the user data being traced is displayed.

Different information is displayed depending on the protocol of the packet (TCP, UDP, or others).

See TPF Operations for more information about the ZIPTR command and for an example of the informational display.