Telnet CTRACE

Telnet uses the TCP/IP stack component name SYSTCPIP. Telnet CTRACE with only the Telnet option specified provides complete information about Telnet processes. You do not need other CTRACE options for debugging most Telnet problems.

A sample Telnet component trace is supplied. The member name is CTIEZBTN in SYS1.PARMLIB. You set up tracing for Telnet in the same way that you set up tracing for the TCP/IP stack; however, there are fewer trace options needed for Telnet. You can change the component trace in the JCL by specifying a new parmlib member in the form CTIEZBxx. For a complete description of the trace options and for information about how to set up tracing, see the TCP/IP services traces and IPCS support information in z/OS Communications Server: IP Diagnosis Guide.

The following subset of trace options is available in the SYSTCPIP component when it is set up for Telnet:

• ALL (excludes SERIAL, STORAGE, and TIMER)
• INIT (includes OPCMDS and OPMSGS)
• MESSAGE
• MIN or MINIMUM (includes INIT, OPCMDS, and OPMSGS)
• MISC
• NONE (or OFF)
• OPCMDS (includes INIT and OPMSGS)
• OPMSGS (includes INIT and OPCMDS)
• SERIAL
• STORAGE
• TELNET
• TIMER
• WORKUNIT