Administrator's Guide

Fabric Watch Administrator’s Guide 5

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Class, area, and element hierarchy

Fabric elements and events are organized in a hierarchy by class, area, and element. There is a

class, area, and element associated with every monitored behavior. Classes are the highest level in

the system, subdivided into one or more areas. Areas contain one or more elements.

An example of a very simple Class --> Area --> Element hierarchy follows.

Port

--> Cyclic redundancy check (CRC)

-->port 0

For specific information about classes, areas, and elements, refer to Chapter 3, “Fabric Watch

Threshold Components”.

Switch monitoring components

Fabric Watch software enables you to monitor the independent components that are listed in this

section.

Fabric events monitoring

The Fabric class groups areas of potential problems arising between devices, such as zone

changes, fabric segmentation, E_Port down, fabric reconfiguration, domain ID changes, and fabric

logins. A Fabric-class alarm alerts you to problems or potential problems with interconnectivity. You

can customize Fabric class and area parameters using the thConfig command.

For complete information about fabric monitoring, refer to “Fabric monitoring guidelines and

default settings” on page 37.

Performance monitoring

Performance monitoring groups areas that track the source and destination of traffic. Use the

Performance Monitor class thresholds and alarms to determine traffic load and flow and to

reallocate resources appropriately.

You can customize Performance Monitor class and area parameters using the thConfig command.

The fmConfig command Manages frame monitor configuration, replacing deprecated advanced

performance monitoring commands. Use the fmConfig command to configure, install, and display

frame monitors across port ranges on a switch. See the Fabric OS Command Reference Manual for

details.