Dell POWEREDGE M1000E User Manual

Page 112

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84

Fabric OS Command Reference

53-1002746-01

bottleneckMon

2

--exclude [slot/]port_list

Excludes the specified ports from bottleneck detection. No data will be collected
from these ports, and no alerts will be triggered for these ports. All statistics
history for a port is erased when a port is excluded. Alerting parameters are
preserved. It is not recommended to exclude ports from monitoring except under
special circumstances, for example, when a long-distance port is known to be a
bottleneck because of credit insufficiency. The wildcard (*) port specifier is allowed
but not recommended. Use --disable to exclude all ports on the switch.

--include [slot/]port_list

Includes previously excluded ports for bottleneck detection. Previously configured
switch-wide alerts and threshold parameters reapply when bottleneck detection
resumes. The wildcard (*) port specifier may be used as a shorthand for removing
all exclusions.

--configclear [slot/]port_list

Removes any port-specific alert parameters from the specified ports and restores
switch-wide parameters on these ports. You can still view the history of
bottlenecks statistics on these ports. However, alert calculations restart on the
specified ports after the parameter reset. This operation is allowed on excluded
ports.

--disable

Disables bottleneck detection on the entire switch. This operation erases all
configuration details, including the list of excluded ports, all custom thresholds and
alerting parameters for specific ports, and all historical data.

--show [[slot/]port |*]

Displays a history of the bottleneck severity for the specified ports. The output
shows the percentage of one-second intervals affected by the bottleneck condition
within the specified time interval. When a single port is specified, the command
displays the bottleneck statistic for that port. When the wildcard (*) is specified, the
same statistic is displayed for every port on the switch. Additionally, a combined
"union" statistic for the switch as a whole is displayed. When used without a port
specifier, the command displays the number of ports affected by bottleneck
conditions. A "bottlenecked" port in this output is defined as any port that was
affected by a bottleneck for one second or more in the corresponding interval.
This command succeeds only on online ports.

The following operands are optional:

-interval seconds

Specifies the time window in seconds over which the percentage of seconds
affected by bottleneck conditions is displayed in the output. When a port is
specified with the --show command, the maximum interval is 10800 seconds (3
hours). When a wildcard (*) is specified, the maximum interval is defined such that
the value of -span divided by the value of the interval cannot exceed 30. The
interval value must be greater than 0.The default value is 10 seconds.

-span seconds

Specifies the total duration in seconds covered in the output. When a port is
specified with the --show command, the maximum span is 10800 seconds (3
hours). When a wildcard (*) is specified, the maximum span is defined such that
the value of -span divided by the value of the interval cannot exceed 30. The span
value must be greater than 0. The default value is 10 seconds.

History data are maintained for a maximum of three hours per port, so the span
can be 10800 seconds at most. When the show command is issued for all ports
(*), the maximum duration is defined such that the value of -span divided by the
value of the interval cannot exceed 30.

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