
Diagnostic Messages
X.25 Diagnostic Messages
Appendix C 251
73 (CLEAR) Duplicate
facility
requested.
Same facility code appeared twice in the facility
field. Error is returned to caller if condition was
detected in CALL REQUEST. CLEAR was not
generated.
76 (CLEAR) Facility not
provided when
expected.
When system was configured to handle IP over
X.25 as per DDN specifications, CALL
INDICATION for IP did not have DDN standard
selection facility code.
Table C-6 CATEGORY - Miscellaneous
Diagnostic
ISO
Description
Explanation
83 (CLEAR) Inconsistent Q
bit setting.
The connection was cleared due to an
inconsistent Q bit found in the packet.
Table C-7 International Problem and Maintenance
Diagnostic
ISO
Description
Explanation
113 (CLEAR) Remote
network
problem.
The remote network is not operational.
115 (CLEAR) International
link out of
order.
Connection to the PSN is not currently available
(network not operational).
121 (CLEAR) Unknown
called DNIC.
The CALL could not be routed because the DNIC
in the called address is unknown.
122 (CLEAR,
RESET)
Maintenance
action.
System administrator shut down specific VC or
the entire interface.
Table C-8 DTE-Specific Signals
Diagnostic
ISO
Description
Explanation
Table C-5 Call Setup, Call Clearing, or Registration Problem (Continued)
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