Brocade Fabric Watch Administrators Guide (Supporting Fabric OS v7.3.0) - Manual (Page 22)

changes. These events include login failures, zone configuration changes, firmware downloads, and
other configuration changes; in other words any critical changes that have a serious effect on the
operation and security of the switch.
Important information related to event classes is also tracked and made available. For example, you
can track changes from an external source by the user name, IP address, or type of management
interface used to access the switch.
NOTE
Audit messages are generated for port fencing configuration changes, whether port fencing is enabled
or disabled.
You can set up an external host to receive Audit messages so you can easily monitor unexpected
changes. For information on error messages generated by Fabric Watch, refer to the Fabric OS
Message Reference. For information on configuring an Audit Log, refer to the "Audit Log
Configuration" section of the Fabric OS Administrator's Guide.
Data values
A data value represents a measured value or a state value, described as follows:
• Measured value — The current, measurable value of a fabric or fabric element, such as
environmental temperature.
• State value — The only qualitative data value information on the overall state of a fabric component.
Instead of numerical data, state values contain information on whether components are faulty,
active, or in another state.
NOTE
Either measured values or state values can be used; mixed values are not supported.
Fabric Watch compares the measured values to a set of configurable limits to determine whether
fabric monitoring has occurred and whether to notify you. You must set appropriate threshold
boundaries to trigger an event.
State values are handled differently, as Fabric Watch monitors state values for certain states which
you can select. When a state value transitions to one of the monitored states, an event is triggered.
Time bases specify the time interval between two samples to be compared. You can set the time base
to day (samples are compared once a day), hour (samples are compared once an hour), or minute
(samples are compared every minute). Second samples are not advisable. This configurable field
affects the comparison of sensor-based data with user-defined threshold values.
Refer to Time bases on page 27 for more information.
Fabric Watch support in Access Gateway mode
Both the Advanced Performance Monitoring (APM) license and the Fabric Watch license must be
installed on the platform configured in Access Gateway (AG) mode to use the frame monitoring and
end-to-end (EE) monitoring capabilities. The APM license provides the counters and the Fabric Watch
license provides the monitoring and alert mechanisms for these counters. Refer to
Setting the high
threshold of the RX area of an EE monitor on page 57 for configuration information.
Data values
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