Because the event information necessary to diagnose problems is present in the analysis model, DFM monitors only the events necessary to diagnose problems. DFM can operate as an independent management system or can integrate with existing management applications to add fault management to the functionality already in place. DFM Architecture DFM consists of three components. DFM Domain Manager The domain manager, DfmServer, is the centerpiece of DFM, pinpointing the cause of Cisco device failures. The consoles and adapters are examples of DFM clients.
Adapters provide a means of communication between domain managers and the networked system.
DFM consoles are graphical interfaces for interacting with the DFM domain manager. The Monitoring Console is used to view the results of a domain manager's analysis and the Administration Console, which also launches the Polling and Thresholds Console, is used to manage a DFM system. The DFM broker facilitates communication between the DFM domain manager and DFM clients. It contains the Cisco analysis model , an in-memory repository of managed objects, and several adapters that interact with the managed domain. The analysis model describes the types of elements managed by DFM, the problems that can occur in those elements, and the symptoms that are caused by these problems.