Brocade Access Gateway Administrator's Guide (Supporting Fabric OS v7.3.0) - Manual (Page 85)

Frame monitors
Frame monitors count the number of times a frame with a particular pattern is transmitted by a port and
generate alerts when thresholds are crossed. Frame monitoring is achieved by defining a filter, or frame
type, for a particular purpose. The frame type can be a standard type (for example, an SCSI read
command filter that counts the number of SCSI read commands that have been transmitted by the port)
or a frame type that you can customize for a particular use. For a complete list of the standard, pre-
defined frame types, see the fmMonitor command description in the Fabric OS Command Reference
Manual.
To enable frame monitoring, you must install a frame monitor on an F_Port or N_Port in the AG switch
using the fmMonitor command. Using options in this command, you can also perform the following
tasks:
• Create a new frame type.
• Delete a specified frame type.
• Delete the set of ports on which the specified frame type can be monitored.
• Add a set of ports for which a specific frame type can be monitored.
• Save a set of ports on which the specified frame type can be monitored.
• Show different frame types configured on the switch, as well as frame counters.
• Change properties for a particular frame type, such as thresholds and bit pattern.
• Clear a set of ports on which the specified frame type is monitored to the persistent configuration.
Complete details of the fmMonitor command parameters are provided in the Fabric OS Command
Reference Manual.
The thConfig command can be used for advanced configuration of filter thresholds corresponding to
frame monitors. See the Fabric Watch Administrator’s Guide for more information about using this
command.
For more information on frame monitoring, including the following topics, refer to the "Frame monitoring"
section in the Fabric OS Administrator’s Guide :
• General feature information
• Maximum number of frame monitors and offsets per port for different switch models
• Virtual fabric considerations
• Adding frame monitors to a port
• Removing frame monitors from a port
• Creating custom frame types to be monitored
• Deleting frame types
• Saving frame monitor configurations
• Displaying frame monitors
• Clearing frame monitor counters
Limitations for using legacy APM features
The following limitations apply to using legacy APM features on an AG switch:
• The Top Talker and ISL monitoring features used for APM in switch mode are not supported on an
AG switch.
• APM on an AG switch is not supported in Web Tools.
• Configuration file upload and download of end-to-end and filter monitor configurations is not
supported in the Fabric OS v7.0.0 release.
• When downgrading to a pre-Fabric OS v7.0.0 release, the user is notified to remove all the end-to-
end and frame monitors installed.
• When switching between AG mode and non-AG mode, the user is notified to remove all the end-to-
end and frame monitors installed.
Frame monitors
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