Specifying TCP/IP address space parameters

Parameters are specified in the PARM= field of the cataloged procedure's EXEC JCL statement. The values specified in this field can be any of the following ones:

Stack initial component trace parameters

The following parameters configure stack tracing at initialization time:

CTRACE(CTIEZBxx) or TRC=xx can be specified to identify the CTIEZBxx member of SYS1.PARMLIB, which contains the SYSTCPIP Component Trace (CTRACE) options. If neither parameter is specified, the default member CTIEZB00 is used.
IDS=xx can be specified to identify the CTIIDSxx member of SYS1.PARMLIB, which contains the SYSTCPIS Component Trace (CTRACE) options. If this parameter is not specified, the default member CTIIDS00 is used.

Language Environment runtime options and environment variables

These values are used by the stack's Language Environment® functions:

Configuration
Autolog
SNMP TCP/IP Subagent

For example, the TCP/IP stack's configuration function uses the z/OS® UNIX search order to locate TCPIP.DATA information to determine the stack's host name. See the search orders used in the z/OS UNIX environment in the z/OS Communications Server: IP Configuration Guide for a description of this search order. Use the RESOLVER_CONFIG environment variable in the PARM= field of the TCP/IP cataloged procedure to specify the TCPIP.DATA file or data set that you want the configuration function to use.

Stack Configuration task tracing parameter, -d or -D

This parameter enables tracing of Configuration task processing before the ITRACE ON CONFIG 1 Profile statement is processed.

Requirement: If this parameter is specified, then it must be the last parameter specified in the PARM= field, and it must be preceded by a slash as in the following example:

 //TCPIP  EXEC  PARM=('&PARMS',
               // 'ENVAR("RESOLVER_CONFIG=//''TCPIVP.TCPPARMS(TCPDATA)''")'
               // '/ -d')

This trace can be disabled by way of a VARY TCPIP,,OBEYFILE command with ITRACE OFF CONFIG statement specified in the data set referenced by the command.