User's Manual

Diagnostic Messages
X.25 Diagnostic Messages
Appendix C 261
227
(CLEAR)
Connection
rejection.
Cause
unspecified
(transient
condition).
Due to internal constraints at high
levels other than lack of network
memory, CALL INDICATION cannot
be serviced.
224
(CLEAR,
RESET)
OSI Network
Service
problem.
OSI network service not operational.
228
(CLEAR)
Connection
rejection.
Reason
unspecified.
(Permanent
condition)
(Transient
condition).
X.25 to IP subsystem clears incoming
CALL INDICATION which has calling
address not present in IP to X.121
mapping table. If call were accepted,
circuit would be half-duplex enabling
remote node to send and receive while
local host would only be able to
receive. When X.25/IP output routine
has data addressed to remote node it
must be able to map the IP address to
the X.121 address. If it cannot do so,
the IP packet is discarded. Clearing
the INCOMING CALL when the
remote's X.121 address is not in the
map table prevents a half-duplex
circuit from being established.
231
(CLEAR)
Connection
rejection.
NSAP
unreachable
(transient
condition).
No listen socket capable of servicing
CALL INDICATION. X.25 subsystem
is down when X.25-to-IP subsystem is
servicing CALL INDICATION.
232
(CLEAR)
Connection
rejection.
NSAP
unreachable
(permanent
condition).
CALL INDICATION with first byte of
call user data other than CC (hex)
received on system which does not
have X.25/9000 programmatic access
configured in kernel.
Table C-9 OSI Network Service Problem (Continued)