Listed below are the codes that are generated for X.25 link failures by the
Qualified Logical Link Control (QLLC) module. They are listed in numerical
order according to the ErrorNum displayed as part of these SNA
Transport logging messages:
Link connect failure on node NodeName
subsystem = SubsysID, procedure = ProcNum, error num = ErrorNum
Link failure, recovery in progress on node NodeName
subsystem = SubsysID, procedure = ProcNum, error num = ErrorNum
Link failure, shutting down the node NodeName
subsystem = SubsysID, procedure = ProcNum, error num = ErrorNum
The logging messages are described in "SNA Transport Logging Messages" earlier
in this appendix. The X.25 link-related ProcNum values are
described in "X.25 Link QLLC Internal Error Codes" later in this appendix.
MESSAGE: BAD FRAME RECEIVED
Level: -14
CAUSE: SNA/X.25 received an invalid QLLC control frame
(QLLU) from the remote system.
ACTION: Try to reproduce the problem with link-level tracing
turned on. Also, call your Hewlett-Packard support contact.
MESSAGE: REMOTE PROTOCOL ERROR
Level: -15
CAUSE: The remote system sent a QLLC control frame (QLLU)
that violated the QLLC protocol. This can be caused by software
errors on the IBM system or the HP e3000 system, or by the two end
nodes being out of sync.
ACTION: Try to restart the SNA node. If the problem continues,
reproduce it with link-level tracing turned on and call your Hewlett-Packard
support contact.
MESSAGE: QLLC INTERNAL ERROR
Level: -38
CAUSE: The Qualified Logical Link Control (QLLC) module
has either encountered an internal error or received an error notification
from NETIPC.
ACTION: Note the ProcNum displayed in the
accompanying logging message. Then, look at the message with the
corresponding number in "X.25 Link QLLC Internal Error Codes" later in this
appendix. Also, call your Hewlett-Packard support contact.
MESSAGE: DATACOM LINE LOST
Level: -74
CAUSE: The virtual circuit has terminated. That is, it
has been cleared, reset, or restarted.
ACTION: Since this is a recoverable link error, restart
the SNA node. If the error still occurs, call your Hewlett-Packard
support contact.
MESSAGE: DISCONNECT TIMER POPPED
Level: -76
CAUSE: The X.25 link has timed out while waiting for
a solicited Q disconnect (QDC) from the remote system. The disconnect
timer normally is running when the link is in the process of shutting
down. Since the link is terminated when the timer pops, the desired
result (shutting down the link) is achieved.
ACTION: Note that the solicited QDC was never received.
No other action is necessary.
MESSAGE: INACTIVITY TIMER POPPED
Level: -77
CAUSE: The time interval specified for Inactivity Timeout
has elapsed since any packets were sent or received.
ACTION: Use NMMGR or the configuration file critical summary to
ensure that the interval specified for Inactivity Timeout is
correct. If the timeout occurs before a transaction is completed, try
increasing the value of Inactivity Timeout. If the error still
occurs, call your Hewlett-Packard support contact.
MESSAGE: CONNECT TIMER POPPED
Level: -78
CAUSE: The X.25 link has timed out waiting for a QSM
from the remote system.
ACTION: Restart the SNA node. If the problem still occurs,
call your Hewlett-Packard support contact.
MESSAGE: ALREADY CONNECTED
Level: -79
CAUSE: SNA Transport has requested an SNA connection
for an X.25 link that is already connected.
ACTION: Call your Hewlett-Packard support contact.
MESSAGE: DISCONNECT IN PROGRESS
Level: -80
CAUSE: SNA Transport has requested an SNA connection
or disconnection while a QDC is pending from the remote system.
ACTION: Call your Hewlett-Packard support contact.
MESSAGE: CONNECT IN PROGRESS
Level: -81
CAUSE: SNA Transport has requested an SNA connection
or disconnection while the QSM from the remote system is pending.
ACTION: Call your Hewlett-Packard support contact.
MESSAGE: UNEXPECTED QDC
Level: -83
CAUSE: The remote system has sent an unsolicited Q disconnect (QDC).
ACTION: Restart the SNA node. If the problem still occurs,
call your Hewlett-Packard support contact.
MESSAGE: UNEXPECTED QSM
Level: -84
CAUSE: The remote system has sent a QSM after the SNA
connection has already been established.
ACTION: Since this is a recoverable link error, the SNA
node will be revived. So, no action is necessary.