Command Errors [ NS3000/iX Operations & Maintenance Reference Manual ] MPE/iX 5.0 Documentation
NS3000/iX Operations & Maintenance Reference Manual
Command Errors
If you are using the interactive capabilities of NS3000/iX and associated
links and receive an error, refer to "NS3000/iX Network Services Error
Messages" in the NS3000/iX Error Messages Reference Manual.
The command errors fit into four categories:
* Syntax errors or invalid options. These errors result from user
errors when issuing the command. They are readily corrected by
checking for the correct syntax and reissuing the command.
* Warnings. If a command is executable but may give unexpected
results, a warning is issued. This would occur in a situation
where conflicting options were specified. The warning informs you
which option was actually used (or not used).
* Resource Errors. These errors occur when a system resource needed
for the execution of the command is not available. If they occur,
you can wait and reissue the command later, when the resource may
be available. If resource errors happen frequently the
configuration or resource allocation of the system may be
inadequate. The network manager may need to investigate further.
* Internal Errors. These errors indicate that the software
is malfunctioning. If they ever occur, notify your HP
representative. The network manager should follow the steps
outlined in appendix B, "Submitting an SR."
For syntax errors and warnings, consult the reference pages in this
manual for that command's correct syntax and options, or refer to Using
NS3000/iX Network Services.
Line Opening Errors
There are several reasons why a DSLINE command for opening a
communications line might be rejected. Some line opening errors actually
occur when a REMOTE HELLO (or DSCOPY, or programmatic RPMCREATE or FOPEN)
is executed, not when the DSLINE is done. The following list summarizes
the likely causes of line opening failures:
* The user made a syntax error in the DSLINE command.
* The user specified an erroneous nodename or envid in the DSLINE
command. The node name must match the one configured for the
system the user is trying to reach. Make sure that all users know
the correct node names. You may want to post a map with the
configured node names for all the nodes on the network. The
correct node names can be checked in the network directory (if one
is being used).
* A network was not started by the local console operator, the
remote console operator, or any intermediate nodes. Check that
all required commands have been issued on the local, remote, and
intermediate nodes. The network interfaces, the LAN NI, the
loopback NI, point-to-point NI, X.25 NI, token ring NI, and
gateway half NI, must be initialized with NETCONTROL START
commands. The DTC/X.25 Network Access card in the DTC must be
started; refer to Using the OpenView DTC Manager or Configuring
and Managing Host-Based X.25 Links. The Network Services must be
initialized with the NSCONTROL START command. Some links may also
need to be started by NETCONTROL ADDLINK commands. Links can be
configured not to be started when a NETCONTROL START command is
executed and be started via NETCONTROL ADDLINK. Links may have
been closed by NETCONTROL DELLINK or may have been closed because
an irrecoverable error was detected on the line.
* The remote node may not be operational.
* The remote operator may have lowered the session limit. This
would cause a failure in a REMOTE HELLO or a DSCOPY or RPMCREATE
that tried to automatically log on to a session.
* The local console operator may have used the service list of the
NSCONTROL command to limit the Network Services to incoming users
only. On the remote node, the operator may have limited the
Network Services to outgoing only. This would cause a REMOTE
HELLO, DSCOPY, remote FOPEN, or RPMCREATE to fail, depending on
which services were not started.
* If the line is a dial up line, a failure in a REMOTE HELLO, DSCOPY
or RPMCREATE can be caused by the following:
* If auto dial, the number was busy, wrong, or was never
answered at the remote computer.
* The security strings did not match at either the local or
remote node (if security was enabled).
* The IP address of the remote node was not configured as a
candidate for use of this link.
* If the link is a shared dialup link, a failure will occur
if the link is connected to a node different than the one
issued in the DSLINE command.
* When a REMOTE HELLO is issued which causes the phone to be
dialed, there is a window in which subsequent REMOTE HELLOs
from other users will be rejected. The window is from the
time the auto dial starts (or dial request) to when the
connection is established.
* A REMOTE HELLO, DSCOPY or RPMCREATE will fail if the IP address of
the remote node configured in the network directory does not match
the IP address of the remote node configured in the NS
Configuration file.
* All virtual terminals on the remote node are already in use, which
means there are no remote resources available to establish a
remote session. This would cause a failure in a REMOTE HELLO or a
DSCOPY or RPMCREATE that tried to automatically log on to a
session.
* Someone has exclusive access to the specified line or the user
requested exclusive access to a line that is already in use.
* Someone is exclusively accessing a server program. For example,
someone is executing the STORE command or a SYSGEN system backup
on DSSERVER.NET.SYS.
* There is a hardware problem - the communications device is not
responding correctly.
Line Closing Errors
There are several reasons why a DSLINE command for closing a
communications line might be rejected. The following list summarizes the
likely causes of line closing failures:
* The user made a syntax error in the DSLINE command.
* The user specified an erroneous nodename or envid in the DSLINE
command. The nodename must match the one configured with NMMGR.
Make sure that all users know the correct nodenames. You may want
to post a map with the configured nodenames for all the nodes on
the network.
* The remote node may not be operational.
* There is a hardware problem - the communications device is not
responding correctly.
NMS Utility Errors
A file system error (FSERR) may have occurred while attempting to access
the configuration file. Try to access the configuration file under the
same user ID using NMMGR. Use the NMMGR Error screen to find out what the
underlying FSERR is. A complete listing of NMS error messages is
available in Using the Node Management Services (NMS) Utilities. Correct
the problem and retry.
MPE/iX 5.0 Documentation