Fault management encompasses the detection, isolation, and correction of abnormal network operations. Error detection and management provides the means to receive and present error indication. It also allows users to determine the cause of a network error, isolate the error, and perform a corrective action.
NetMan has all the necessary components to help you with "fault detection and isolation". In addition to detecting and isolating faults, NetMan also helps you track faults and trigger both manual and automatic actions.
The fast detection of faults is very crucial to a good management system. NetMan supports the standard fault detection option to receive protocol-specific fault notifications such as SNMP traps, TL1 autonomous messages, or syslog messages from network elements. NetMan complements this standard approach by helping users detect faults even without protocol-specific notifications. It does this by periodically monitoring the network element for its reachability and faulty conditions.
The efficiency of a fault management system lies in its ability to look at various fault events and correlate these to determine the root cause of the fault. Once in a while, network elements might also send the same fault notification. Therefore It is necessary for the management system to have the right infrastructure in place to consolidate notifications from one or more network elements and correlate the faults to determine the root cause of the problem. NetMan based Element Management Systems capitalize on "built-in alarm consolidation and correlation engines" to help network operators determine the root cause of the problem quickly. NetMan has the intelligence to generate one alarm for each unique problem in the network.
Once a fault is detected, it is essential to track the fault. Large service providers typically have trouble ticketing systems to track such network issues to closure. Smaller service providers might use simple tools such as "Microsoft Excel" to track a smaller number of issues. NetMan has been designed to support both approaches. For large service providers, NetMan's fault engine can be configured to raise each unique problem as a ticket in the trouble ticketing system. Smaller service providers can use NetMan's built-in trouble ticketing interface to track and address network issues. NetMan's trouble ticketing tools offer field engineers the capability to assign faults manually or automatically. Faults can be acknowledged from either the GUI or from a mobile device. There is an option to escalate faults that are not acknowledged within a certain period of time. NetMan's interface can also act as a communication medium for administrators and support engineers. This helps administrators suggest solutions, enables other support engineers to share their feedback about the problem, and allows the support engineer to address the fault quickly.
Automatic and Manual Actions in Response to Errors
NetMan offers a wide variety of automatic and manual action triggers for alarms. NetMan sports sophisticated features which allow linking up "configuration templates" with automatic actions. Once an automatic configuration action is configured in the management system, faults will be fixed automatically without user interaction. NetMan also supports simpler actions such as forwarding notifications based on various constraints to northbound clients or sending e-mail notifications.