Brocade Communications Systems 8 Command Reference Manual page 104

2
bottleneckMon
--enable
--config
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A wildcard '*' indicates all ports. The wild card should be enclosed in
single quotation marks. The wildcard ('*) specifier is not allowed with the
--config option. To make switch-wide changes, use --config without a
port specifier.
Enables bottleneck detection on the switch. This operation is switch-wide and
affects all F[L]_Ports and F_Ports. This operation enables bottleneck
monitoring on all eligible ports of a switch, no matter when they become
eligible. If you have Virtual Fabrics enabled and you move ports into a
bottleneck enabled logical switch from another logical switch, bottleneck
monitoring is enabled upon completion of the move. You can configure
optional thresholds and alerts when you enable the feature, or you can
change selected parameters later with the --config command.
Modifies bottleneck detection parameters on specified ports or, when a port
list is not specified, on the entire switch. Bottleneck detection must first be
enabled before you can fine-tune the configuration with the --config
command. The history of bottleneck statistics thus far will not be lost for the
specified ports and can be viewed with the --show option. However, alert
calculations restart on the specified ports when parameters change. This
operation is allowed on excluded ports.
The following parameters can be optionally set with the --enable and
--config commands; if omitted, default thresholds apply.
-alert Enables alerts when configured thresholds are exceeded on the ports that
are enabled for bottleneck monitoring. The alerting mechanism is by RASlog
and SNMP traps. This operand is optional; if omitted, no alert is assumed.
When -alert is specified, one or more of the following operands may be
specified. If -alert is not specified and you try to specify additional
configuration parameters, the command fails with an appropriate message.
-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.
-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)..
Fabric OS Command Reference
53-1001764-02