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The VCM endeavours to self monitor itself for correct operation and correct any inconsistencies it finds. This includes the resetting of
malfunctioning sub-systems or the whole card if necessary. The module attempts to maintain correct operation to minimise the
effects of faults. All such actions are reported through the alarms/status/logging back to the host card.
Module Responses
The Host card monitors all responses back from the module and resets the module if appropriate. This includes initiating redundancy
switches if this results in limiting the error period. All actions are
logged
by the Host card.
Alarm Status Menu
Current Alarms
The alarm status of the chassis is available on the web GUI: Alarms > Current. All currently active alarms will be displayed on this
page, along with details of the time and date that the alarm was raised, the severity and description of the alarm and which module
the alarm is associated with.
Alarm History
A complete history of all alarms raised and cleared since the last power cycle is displayed on the web GUI: Alarms > History.
Masking Alarms
The severity of the alarms that can be raised by each module can be edited if required on the we GUI: Alarms > Set Masks page.
All possible alarms are listed, and the user can change the severity to be a warning, minor, major, critical or masked.
NOTE :
If the alarm is masked it will not be displayed on any of the reporting interfaces, and will not produce an SNMP trap
message.
Basic Fault Scenarios
Unit Not Working
Gives high level information relating to an inactive unit.
Fans Not Working/Overheating
What to do if the unit overheats.
Unit not Working
If the unit appears not to be working (e.g. Status LED unlit), fault-find the problem as detailed in the following table.
Step Action
If Result of Action is Yes…
If Result of Action is No…
If the unit is clearly working normally then
© Ericsson AB 2011. All rights reserved
© Ericsson AB 2011. All rights reserved
© Ericsson AB 2011. All rights reserved
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