To receive, process the failures in the managed network elements (i.e., Switches) and present it in a meaningful form, you have to implement Fault management service of AdventNet Web NMS. The Switch notifies any abnormality in the operations, parameters and failures to the EMS application in the form of traps
Processing Alerts and Events of Switch device
You have to process the events of the Switch received through the traps to convert it into a meaningful alert.
Create a Trap filter to process the traps. In the application you will be creating a filter called TrapHandling. Add Custom code to handle Addition of Card and Deletion of Card. Model the managed object to check the device status (a method in the Managed Object class to check the status; here, it is the checkStatus() method).
Status polling of Switch device
You have to ensure that EMS gets the status of the Switch and its components periodically. This will be updated in the database and displayed in the Client.
The tutorial explains how to customize the Fault management features.
The Trap handling topic explains how to process traps effectively.
The Status polling topic deals in a detailed manner on how to carryout surveillance of Switch and components periodically.