Reference Guide

period expires. The range is from 1 to 30 seconds. The
default is 5 seconds.
reuse-
threshold
Enter a number as the reuse threshold, the penalty value
below which the interface state is changed to “up”. The
range is from 1 to 20000. The default is 750.
suppress-
threshold
Enter a number as the suppress threshold, the penalty value
above which the interface state is changed to “error
disabled”. The range is from 1 to 20000. The default is 2500.
max-suppress-
time
Enter the maximum number for which a route can be
suppressed. The default is four times the half-life value. The
range is from 1 to 86400. The default is 20 seconds.
Defaults Disabled.
Command
Modes
INTERFACE (conf-if-)
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
8.1.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
7.4.1.0 Introduced on the E-Series.
Usage
Information
With each flap, Dell Networking OS penalizes the interface by assigning a penalty
(1024) that decays 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:
• suppress-threshold should be greater than reuse-threshold
• max-suppress-time should be at least 4 times half-life
NOTE: You cannot apply dampening on an interface that is monitoring traffic
for other interfaces.
Interfaces
795