Analysis
Check the following for problems connecting the SNMP client address space to the TCP/IP address space:
Use the following checklist to check the connection problems:
- Did any socket-related errors occur?
Check the SNMP query stack job output for socket(), bind(), accept(), or other socket error messages.
- Does job output indicate RC=1011 received for IUCV_CONNECT
to tcpip_name? Is the tcpip_name indicated by the IUCV_CONNECT error the correct name for the TCP/IP address space?
- Is the correct TCPIP DATA data set being used? (The job output
should indicate which data set is being used).
- Is the SYSTCPD DD statement coded in the PROC JCL?Tip: SYSTCPD can be overridden by the global TCPIP.DATA file. See the z/OS Communications Server: IP Configuration Reference for additional information about the search order for the TCPIP.DATA data set.
- Is the SYSTCPD DD statement coded in the PROC JCL?
- Does the TCPIPJOBNAME keyword in the TCPIP.DATA data set being used have the correct TCP/IP address space name?
- Is the correct TCPIP DATA data set being used? (The job output
should indicate which data set is being used).
If the problem still occurs after checking the preceding items and making any needed changes, obtain SNMP query stack IUCV communication trace output for problems connecting the client.
The following documentation might also be needed in some
cases, but it is suggested that the TCP/IP IBM® Software Support Center be contacted before
this documentation is obtained:
- Dump of SNMP client address space
- Dump of TCP/IP address space
Information about obtaining a dump can be found in the z/OS MVS Diagnosis: Tools and Service Aids manual for your release of z/OS®. Obtaining SNMP traces is discussed in SNMP traces.