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

Table 51 Packet not allowed
ExplanationISO DescriptionDiagnostic
Packet that cannot be identified (3rd byte of the level 2 information field
not defined in CCITT X.25 Recommendation received).
REJECT or REGISTRATION packet received.
Unidentifiable packet.33 (RESTART,
CLEAR, RESET)
If configured as DTE, CALL INDICATION received with logical channel
identifier (LCI) corresponding to one-way logical channel outgoing.
If configured as DCE (DXE), CALL INDICATION received with logical
channel identifier (LCI) corresponding to one way logical channel
incoming.
Call on one way logical
channel.
34 (CLEAR)
Received packet is less than minimum length. It may be a CALL
INDICATION packet without address length or facility length fields,
Packet too short.38 (RESTART,
CLEAR, RESET)
CLEAR or RESET INDICATION without cause field, or the packet length
may be insufficient to hold address or facility fields.
Received packet exceeds maximum length. The packet may be larger
than allowed by the configuration and negotiations (i.e., fast select), or
Packet too long.39 (RESTART,
CLEAR, RESET)
contain a field (i.e., call/clear user data) that is larger than the allowed
size.
RESTART REQUEST sent because RESTART INDICATION arrived with
logical channel identifier other than 0.
RESTART or
REGISTRATION packet
with non-zero LCI.
41 (RESTART,
CLEAR, RESET)
CALL ACCEPTED or CONFIRMATION packet received when CALL
INDICATION or REQUEST had fast select with restriction on response
facility.
Packet type not
compatible with facility.
42 (CLEAR)
INTERRUPT CONFIRM packet received when no matching INTERRUPT
had been sent.
Unauthorized interrupt
confirmation.
43 (RESET)
Sequence of two INTERRUPT INDICATIONs received and system sent
no INTERRUPT CONFIRMATION packet.
Unauthorized interrupt.44 (RESET)
Table 52 Timer expired
ExplanationISO DescriptionDiagnostic
IP circuit is disconnected because it was inactive for more than the
configured minimum time limit and the system must free the circuit to
complete CALL REQUEST.
Timer expired (generic).48 (CLEAR)
CALL CONFIRM not received within the T21 time limit (set at
approximately 200 seconds) after transmission of CALL REQUEST.
Timer expired for
INCOMING CALL or
49 (CLEAR)
DTE timer expired for
CALL REQUEST.
CLEAR CONFIRM not received within T23 time limit (set at approximately
180 seconds) after transmission of CLEAR REQUEST. After a certain
Timer expired for
CLEAR INDICATION
50 (CLEAR)
number of CLEAR retries, system places logical channel in state P1
(Ready).
(or DTE timer expired
or retransmission count
surpassed for CLEAR
REQUEST).
RESET CONFIRM not received within T22 time limit, set at approximately
180 seconds, after transmission of RESET REQUEST. After a certain
Timer expired for RESET
INDICATION (or DTE
51 (CLEAR, RESET)
number of RESET retries, the system places logical channel in state D1timer expired or
(Flow Control Ready) if PVC, or in state P6 (DTE Request) by sending
CLEAR REQUEST if SVC.
X.25 Diagnostic messages 153