Finisar Surveyor manual Module Settings for the Expert System, Setting Expert Alarms

Expert Features 10

Working with the Expert System

The tree can be expanded or collapsed by clicking on the plus or minus icon, double-clicking on the item, or using direction keys. The checkbox can be checked or unchecked by clicking on the checkbox or by selecting the symptom and pressing the Space bar. The edit control is activated by selecting the value and clicking on it or pressing the Space bar.

When a setting is changed, the number is checked against minimum and maximum values. Clicking anywhere inside the dialog box besides the edit control or pressing Return key closes the edit control and enters the new configuration value. Pressing the Escape key restores the original value.

Module Settings for the Expert System

Turning the expert system on or off can be controlled on a per-device basis. Select Module → Settings... from the Configuration menu. From the Modes tab, turn on/off the expert system using the check box.

Setting Expert Alarms

Expert Alarms allows you to set thresholds related to Expert Symptoms. Alarms can be configured to perform an action such as a page or e-mail, as with all other Surveyor alarms. Alarms test for thresholds at different protocol layers, such as the number of NFS retransmissions at the application layer or a specific overload utilization percentage at the MAC layer.

Some network problems are not single events, but are indicated by certain thresholds or counters being exceeded. To catch these type of problems, use Expert Alarms. Many event counters within the Expert Alarm Table that can be used to flag network conditions that are not single events, such as excessive multicast broadcasts.

Customizing Expert Diagnostic Information

Surveyor provides diagnostic information that is general to all networks. However, you can customize the diagnostic information to suit your environment.

As you use any diagnostic system you may find that certain error events occur regularly and or that events have a unique meaning in your environment. Custom solutions may apply to fixing the problems that are indicated by expert symptoms. By customizing the diagnostic information, you build an “information base” that applies to your particular environment. When the same problems occur, the custom information displays as well as standard information, providing the diagnostician with the benefit of previous experience related to your particular network.

10-17