Troubleshooting the SWAN Concentrator and WAN Subsystem

Recovering From a SWAN Concentrator Alarm
Note: The following instructions are applicable to the OSM package and to the G06.02
and later product versions of the TSM package.
This page explains how to recover from a ServerNet wide area network (SWAN)
concentrator alarm displayed by the OSM Service Connection or the TSM Service
Application.
Note: Beginning with the G06.03 RVU, SWAN concentrator alarms are cleared
automatically. In pre-G06.03 RVUs, SWAN concentrator alarms must be cleared manually.
Click here for information about clearing a SWAN concentrator alarm.
Click the alarm you are interested in below for recovery information:
SWAN Download Error Alarm●
Network Error Alarm●
I/O Process Error Alarm●
SWAN Memory Error Alarm●
Hardware Error Alarm●
IOP Line Parameters Error Alarm●
SWAN Kernel Error Alarm●
Incorrect Logical Configuration Alarm●
SWAN Download Error Alarm
This alarm is generated when there is a problem downloading a data link control (DLC) task
to a communications line interface processor (CLIP) on the SWAN concentrator. Possible
causes of this alarm include:
A problem with the DLC task object code file (specified by the PROGRAM attribute).●
A problem with the ConMgr process, the WAN manager process, or the TFTP server
process. These processes work together to download a DLC task to a CLIP.
●
A problem with the software or hardware connection between the SWAN concentrator
and the NonStop S-series server.
●
To recover from this alarm, do the following: