Appendix A: Standard communications error subcodes

Subcodes indicating errors related to IBM software

The following subcodes in Table A-6 indicate programming errors that are internal to IBM software.

**Table A-6: Subcodes for internal IBM programming errors**
No.	Error subcode	Explanation
81	XC_PROTOCOL	SNA protocol violation.
82	XC_SNACODEFAIL	SNA system failure.
83	XC_NORCB	No RCB.
84	XC_NOMODECB	Cannot find the mode control block.
85	XC_SENSE	Sense code included.
86	XC_NOSESACT	Session was not established.
87	XC_IBMOTHER	Other, non-LU 6.2 related errors.
88	XC_INOP	INOP received.
89	XC_HIERRESET	Hierarchical Reset received.
90	XC_NOLUREGIS	No LU registered.
91	XC_PUERP	SNA ACTPU (ERP) received.
92	XC_FILE_TOOBIG	File is too big (Error number 27).
93	XC_UNKNOWN_CODE	Unknown, unrecognized vendor code.