HP X.25/9000 User's Guide HP-UX 11i v3 (5900-1523, August 2011)

Table 53 Call setup, call clearing, or registration problem (continued)
ExplanationISO DescriptionDiagnostic
No combination of facilities can equal the value indicated in the packet’s
facility length field. If this condition is detected in the CALL REQUEST
packet it produces an error instead of a CLEAR.
System could not add negotiation facilities without the facility field
becoming larger than allowed by the configured revision level of the
CCITT X.25 Recommendation (63 for 1980, 109 for 1984). This can
happen only if the configured negotiation facility codes are not present
in the facility field.
Configuration and status of interface disallows the opening of new
inbound connection.
Incoming call barred.70 (CLEAR)
No VC suitable for placing a connection in READY (P1) state. Generated
when CALL REQUEST cannot be completed successfully. ENOSPC was
returned to the caller if condition was detected in synchronous manner.
The number of internal connections prohibits new connections being
allocated for CALL INDICATION.
No logical channel
available.
71 (CLEAR)
When configured as DCE, CALL INDICATION was received on logical
channel where CALL REQUEST had been sent. CALL REQUEST was
cleared because the CALL INDICATION has priority.
Call collision.72 (CLEAR)
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.
Duplicate facility
requested.
73 (CLEAR)
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.
Facility not provided
when expected.
76 (CLEAR)
Table 54 CATEGORY - miscellaneous
ExplanationISO DescriptionDiagnostic
The connection was cleared due to an inconsistent Q bit found in the
packet.
Inconsistent Q bit
setting.
83 (CLEAR)
Table 55 International problem and maintenance
ExplanationISO DescriptionDiagnostic
The remote network is not operational.Remote network
problem.
113 (CLEAR)
Connection to the PSN is not currently available (network not
operational).
International link out of
order.
115 (CLEAR)
The CALL could not be routed because the DNIC in the called address
is unknown.
Unknown called DNIC.121 (CLEAR)
System administrator shut down specific VC or the entire interface.Maintenance action.122 (CLEAR, RESET)
Table 56 DTE-Specific signals
ExplanationISO DescriptionDiagnostic
CALL INDICATION with reverse charge requested has been received,
and reverse charge is configured to be rejected by system.
DTE-specific signal
(generic).
160 (CLEAR, RESET)
CALL INDICATION with reverse charge requested has been received
by IP and reverse charge is configured to be rejected for that IP/X.121
address pair. Check is done via IP to X.121 address map table.
CALL INDICATION with reverse charge requested has been received
by IP and no entry in the IP-to-X.121 address map table exists for this
X.25 Diagnostic messages 155