gtpc1m26Transmission Control Protocol/Internet Protocol

Starting and Stopping the IP Trace Function

The IP trace function allows you to trace some or all IP packets sent and received by the TPF system. The information is saved in the main storage copy of the IP trace table and optionally written to the real-time tape to be processed offline.

Use the ZTTCP TRACE command to start or stop the IP trace function and to control its properties. You can trace:

Multiple traces can be active at the same time.

If an IP packet is traced, the entire IP header and protocol header (TCP header or UDP header) are saved in the trace table. If data also exists in the packet, the SIZE parameter of the ZTTCP TRACE command controls the amount of data in the packet that is also added to the trace table.