Documentation for the IBM Support Center

In most cases, persistent error conditions indicate an installation or configuration problem. Contact the local IBM® branch office for installation assistance.

If a software defect is suspected, collect the following information before contacting the IBM Support Center:

PROFILE.TCPIP
TCPIP.DATA
Output from Netstat commands. If using policy-based routing, collect Netstat ROUTE/-r output for all possible route tables involved in the failed routing.
Output from Ping traces
If using policy-based routing, output from pasearch commands
Network diagram or layout
Error messages received. See z/OS Communications Server: IP Messages Volume 4 (EZZ, SNM) for information about messages.
Component traces, see TCP/IP services traces and IPCS support
If using dynamic routing protocols for IP route table management, see the following information:
- Diagnosing OMPROUTE problems
- Diagnosing NCPROUTE problems