Reference Guide

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 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0
Introduced on the S4820T.
Version
8.3.12.0
Introduced on the S4810.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the S-Series.
Version 7.5.1.0 Introduced on the C-Series.
Version 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.
Example
Dell(conf-if-gi-3/2)#dampening 20 800 4500 120
Dell(conf-if-gi-3/2)#
Related
Commands
clear dampening — clears the dampening counters on all the interfaces or just the
specified interface.
show interfaces dampening — displays interface dampening information.
Interfaces
785