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Version Description
9.2(1.0) Introduced on the Z9500.
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, the system 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-te-2/2)#dampening 20 800 4500 120
Dell(conf-if-te-2/2)#
Related
Commands
clear dampening — clears the dampening counters on all the interfaces or just the
specified interface.
show interfaces dampening — displays interface dampening information.
description
Assign a descriptive text string to the interface.
Z9500
Syntax
description desc_text
To delete a description, use the no description command.
Parameters
desc_text Enter a text string up to 240 characters long.
Interfaces
837