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.