Brocade Fabric OS Command Reference (Supporting Fabric OS v7.3.0) - Manual (Page 112)

82 Fabric OS Command Reference
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bottleneckMon
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The following parameters can be optionally set with the --enable and --config
commands. Any numerical parameters not specified with the --config option will
retain the current configured values. Whereas, any parameters not specified with
the --enable option will assume their default values.
-alert
Enables both congestion and latency alerts. You can optionally specify either a
congestion threshold or a latency threshold, or both. This operand is optional; if
omitted, the alerts are disabled. To retain the current alert configuration, you must
specify the -alert options for every --config operation.
-alert=congestion
Enables congestion alerts only. You can optionally specify a congestion threshold
for this type of alert. Latency thresholds are not valid.
-alert=latency
Enables latency alerts only. You can optionally specify a latency threshold for this
type of alert. Congestion thresholds are not valid.
When you specify one of the three alert options, the following parameters become
available, although the threshold options are subject to the restrictions stated
above.
-cthresh congestion_threshold
Specifies the severity threshold for congestion that triggers an alert. The
threshold indicates the percentage of one-second intervals affected by the
bottleneck condition within the specified time window. The threshold is
expressed as the equivalent fraction between 0 and 1. The default value is
0.8.
-lthresh latency_threshold
Specifies the severity threshold for latency that triggers an alert. The
threshold indicates the percentage of one-second intervals affected by the
bottleneck condition within the specified time window. The threshold is
expressed as the equivalent fraction between 0 and 1. The default value is
0.1.
-time window
Specifies the time window in seconds over which the percentage of seconds
affected by bottleneck conditions is computed and compared with the
threshold. The maximum window size is 10800 seconds (3 hours). The
default is 300 seconds. This parameter is valid with all three alert options.
-qtime quiet_time
Specifies the minimum number of seconds between consecutive alerts. The
default is 300 seconds. The maximum is 31556926 seconds (approximately
one year). This parameter is valid with all three alert options.
-noalert
Disables alerts. This is the default state assumed if neither -alert nor -noalert is
specified.
-lsubsectimethresh time_threshold
Sets the threshold for latency bottlenecks at the sub-second level. The
time_threshold specifies the minimum fraction of a second that must be affected
by latency in order for that second to be considered affected by a latency
bottleneck. For example, a value of 0.75 means that at least 75% of a second
must have had latency bottleneck conditions in order for that second to be
counted as an affected second. The time threshold value must be greater than 0