Dampening - Dell Force10 Z9000 Reference Manual

FTOS(conf-if-0/52)#exit
FTOS(config)#
Related show config
Commands

dampening

Configure dampening on an interface.
C-Series, E-Series, S-Series, Z-Series
Syntax dampening [[[[half-life] [reuse-threshold]] [suppress-
threshold]] [max-suppress-time]]
Parameters
half-life
reuse-threshold
suppress-
threshold
max-suppress-
time
Defaults Disabled.
Command Modes INTERFACE (conf-if-)
Command History
Version 8.3.11.1
Version 8.1.1.0
Version 7.6.1.0
Version 7.5.1.0
Version 7.4.1.0
Usage With each flap, FTOS penalizes the interface by assigning a penalty (1024) that decays
Information exponentially depending on the configured half-life. After the accumulated penalty exceeds the
suppress threshold value, the interface moves to the Error-Disabled state. This interface state
is deemed as "down" by all static/dynamic Layer 2 and Layer 3 protocols. The penalty is
exponentially decayed based on the half-life timer. After the penalty decays below the reuse
threshold, the interface enables. The configured parameters are as follows:
shutdown
– displays the configuration of the selected interface.
Enter the number of seconds after which the penalty is decreased.
The penalty is decreased by half after the half-life period expires. The
range is 1 to 30 seconds. The default is 5 seconds.
Enter a number as the reuse threshold, the penalty value below which
the interface state is changed to "up". The range is 1 to 20000. The
default is 750.
Enter a number as the suppress threshold, the penalty value above
which the interface state is changed to "error disabled". The range is
1 to 20000. The default is 2500.
Enter the maximum number for which a route can be suppressed. The
default is four times the half-life value. The range is 1 to 86400. The
default is 20 seconds.
Introduced on the Z9000.
Introduced on the E-Series ExaScale.
Introduced on the S-Series.
Introduced on the C-Series.
Introduced on the E-Series.
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