Adding the master_debug keyword to the XAPI_LOCAL channel will result in debug information when PMDF-MB400 makes outbound XAPI connections to MAILbus 400. In this case, the information will be written to the file xapi_local_master.log in the PMDF log directory, i.e., to PMDF_LOG:xapi_local_master.log on OpenVMS, or to /pmdf/log/xapi_local_master.log-uniqueid on UNIX.

When testing inbound XAPI connections received by PMDF-MB400 you should add the slave_debug keyword to the XAPI_LOCAL channel definition. This will result in debug trace information being written to the file xapi_local_slave.log in the PMDF log directory, i.e., to PMDF_LOG:xapi_local_slave.log on OpenVMS, or to /pmdf/log/xapi_local_slave.log-uniqueid on UNIX.

You may combine both keywords if you would like to log debug trace information in both directions.