9
Figure 1
Change rule of the penalty value
Configuration restrictions and guidelines
When you configure dampening on an Ethernet interface, follow these restrictions and guidelines:
•
The
dampening
command and the
link-delay
command cannot be configured together on an
interface.
•
The
dampening
command does not take effect on the administratively down events. When you
execute the
shutdown
command, the penalty restores to 0, and the interface reports the down event
to the upper-layer protocols.
•
Do not enable the dampening function on an interface with MSTP enabled.
Configuration procedure
To configure dampening on an Ethernet interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Ethernet interface
view.
interface
interface-type
interface-number
N/A
3.
Enable dampening on
the interface.
dampening
[
half-life reuse
suppress max-suppress-time
]
By default, interface dampening is
disabled on Ethernet interfaces.
Performing a loopback test on an Ethernet interface
The following matrix shows the feature and hardware compatibility:
Not suppressed
Not suppressed
Suppressed
Penalty
Time
Reuse limit
Suppress limit
Ceiling
t
0
t
1
t
2
