SNAX/XF LU Network Services Manual

Messages and Codes
ESS System Messages
B–6 097841 Tandem Computers Incorporated
" CANNOT PERFORM OPERATION -- LOGON PENDING --> S0016 "
Cause
A logon to a Tandem application is being processed by LUNS as the result of a
previous command from this terminal. The failing command requested an
operation, such as logon or logoff, that is not valid during logon processing. The
only commands valid at this time are ones that cause a user message to be
displayed (such as HELP, DIRECTORY, and so on).
Effect
The failing command is ignored, the terminal’s keyboard is reset to allow the entry
of another command, and LUNS continues processing the logon command.
Recovery
If the pending logon does not complete in a reasonable period of time, abort the
terminal’s LU using SCF or stop the Tandem process for which the logon is
pending.
" CANNOT PERFORM OPERATION -- INVALID REQUEST--> S0018"
Cause
The operation requested is not supported.
Effect
No operation is performed.
Recovery
None.