How to alarm on a model in a Fault Domain when contact is lost to all models in the Fault Domain (Legacy KB ID CNC TS32313 )

Document ID : KB000051741
Last Modified Date : 14/02/2018
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Most users wish to see the Unresolved Fault alarm asserted on a model in the Fault Domain instead of on the Fault Isolation model. This can be done by doing the following:


1. Choose a model in the Fault Domain where you wish the Unresolved Fault alarm to be asserted and set the Criticality attribute (0x1290c) to a value that is higher than any other model in the same Fault Domain. The default value for the Criticality attribute is "1".


2. Set the Unresolved Fault Alarm Disposition value to "Device in Fault Domain". This can be done by doing the following:
a. Find and select the VNM mode
b. Click on the Information tab in the Component Detail panel
c. Find and expand the Fault Isolation folder
d. Set Unresolved Fault Alarm Disposition to "Device in Fault Domain"


The next time SPECTRUM loses connection to all the models in a Fault Domain, the Unresolved Fault alarm will be asserted on the model with the highest Device Criticality in the Fault Domain. If two or more models have the same Device Criticality, SPECTRUM will randomly select one and assert the Unresolved Fault alarm.



The following is an example event:


 








Severity

Created On

Name

Event

Created By


Critical

Jul 17, 2009 1:01:27 PM EDT

Lab-A1

Fault Isolation has detected an unresolved fault.  The following is a list of models to which SPECTRUM has lost contact:

    Lab-A1 of type Cisco2501 with IP Address 192.168.2.151 with a device criticality of 10
    Switch of type Cat295024 with IP Address 192.168.2.150 with a device criticality of 1

As a result of this condition, an alarm has been generated on this model.

System


 

.

Related Issues/Questions:
How to alarm on a model in a Fault Domain when contact is lost to all models in the Fault Domain

Problem Environment:
SPECTRUM 08.01.00.00
SPECTRUM 09.00.00.00
All versions of SPECTRUM
Fault Domain
A Fault Domain is defined as "A group of two or more models all associated (connected) with each other contiguously in the Universe Topology hierarchy."
During the modeling of the network in SPECTRUM, a user may find they have several Fault Domains when the modeling process is complete. By default, when SPECTRUM loses contact to all models in a Fault Domain, an Unresolved Fault alarm is asserted on the Fault Isolation model stating SPECTRUM has lost contact to all the models in the Fault Domain and cannot determine the root cause. The event will list all the models affected. The following is an example event:










Severity

Created On

Name

Event

Created By


Critical

Jul 17, 2009 12:49:11 PM EDT

Fault Isolation

Fault Isolation has detected an unresolved fault.  The following is a list of models to which SPECTRUM has lost contact:

    Lab-A1 of type Cisco2501 with IP Address 192.168.2.151 with a device criticality of 1
    Switch of type Cat295024 with IP Address 192.168.2.150 with a device criticality of 1

As a result of this condition, an alarm has been generated on this model.

System

.

Additional Information:
For more information, please refer to the Modeling Your IT Infrastructure Administration Guide.


(Legacy KB ID CNC TS32313 )