The protocol information supplies protocol related information for the socket calls listed in Table 1.
The search order used to access this configuration file is as follows. The search ends at the first file found:
userid is the user ID that is associated with the current security environment (address space or task/thread).
jobname is the name specified on the JOB JCL statement for batch jobs or the procedure name for a started procedure.
hlq represents the value of the DATASETPREFIX statement specified in the base resolver configuration file (if found); Otherwise, hlq is TCPIP by default.