HP CommonIO Products ISO, Table C-8, Table C-9, Diagnostic, Explanation, Description, OSI Network Service Problem, DTE-SpecificSignals (Continued)

				Diagnostic Messages
				X.25 Diagnostic Messages
Table C-8		DTE-Specific Signals (Continued)
	164 (CLEAR)		Fast select not	CALL INDICATION requiring fast select facility
			subscribed.	has been received and fast select is not
				configured. Results in error when detected on
				CALL REQUEST.
	225 (CLEAR)		Disconnection	X.25 subsystem is down when X.25/9000 to IP
			(transient	subsystem is servicing CALL CONFIRMATION
			condition).	or incoming DATA.
Table C-9		OSI Network Service Problem
	Diagnostic		ISO	Explanation
			Description
	227 (CLEAR)		Connection	Due to internal constraints at high levels other
			rejection.	than lack of network memory, CALL
			Cause	INDICATION cannot be serviced.
			unspecified
			(transient
			condition).
	224 (CLEAR,		OSI Network	OSI network service not operational.
	RESET)		Service
			problem.
	228 (CLEAR)		Connection	X.25 to IP subsystem clears incoming CALL
			rejection.	INDICATION which has calling address not
			Reason	present in IP to X.121 mapping table. If call were
			unspecified.	accepted, circuit would be half-duplex enabling
			(Permanent	remote node to send and receive while local host
			condition)	would only be able to receive. When X.25/IP
			(Transient	output routine has data addressed to remote
			condition).	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.

Appendix C 253