APPC Subsystem on MPE/XL Node Manager's Guide (30294-90007)
134 Chapter6
Troubleshooting the APPC Subsystem
Startup Problems
Startup Problems
This section gives some suggestions for troubleshooting startup
problems. It is divided into two sections:
• Link and Node Level Problems
• APPC Subsystem Problems
Check that the recommended logging classes have been enabled at the
system console through NMMGR. See the SNA Link/XL Node
Manager’s Guide for Hewlett-Packard’s recommended logging
configuration.
Link and Node Level Problems
To determine whether the link and node have activated, issue the
SNACONTROL STATUS command, described in the SNA Link/XL Node
Manager’s Guide. To check the status of a Type 2.1 node, use the
LINK=LINKSTATE
parameter to the SNACONTROL STATUS command. If
the display does not say CONNECTED LEVEL 2, the node did not activate.
This section describes some troubleshooting procedures to be used
when the SNA link does not activate properly. The SNA Link/XL Node
Manager’s Guide contains more detailed instructions for
troubleshooting the SNA link product.
NOTE
The APPCCONTROL START command will not activate the SNA node. To
activate the SNA node, issue the SNACONTROL START command,
described in the SNA Link/XL Node Manager’s Guide.
1. Validate the configuration file. The NMMGR validation utility cross
checks references to SNA nodes and LUs to ensure that they are
configured consistently between the SNANODE and APPC branches
of NMMGR. The NMMGR validation utility is documented in Using
the Node Management Services Utilities.
2. Verify that the HP 3000 has been configured properly. Check the
following items:
• One PU per PSI. When you run multiple PUs concurrently, each
PSI requires a unique PU and each PU requires a unique PSI.
• Configuration file name. You must name the configuration file
NMCONFIG.PUB.SYS.
• Consistent LU Names, SNA Node Name. The LUs you
configure for use by the APPC subsystem must also be configured
in the SNANODE branch of NMMGR. Make sure the LUs you
configure for the APPC subsystem are configured on the same