Enabling Loopback Testing On An Ethernet Interface - H3C S7500E Series Instruction Manual

Figure 1 Change rule of the penalty value
Penalty
Not suppressed
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 feature on an interface with RRPP, MSTP, or Smart Link enabled.
Configuration procedure
To configure dampening on an Ethernet interface:
Step
1. Enter system view.
2. Enter Ethernet
interface view.
3. Enable dampening on
the interface.

Enabling loopback testing on an Ethernet interface

CAUTION:
After you enable this feature on an Ethernet interface, the interface does not forward data traffic.
t
0
Command
system-view
interface interface-type
interface-number
dampening [ half-life reuse
suppress max-suppress-time ]
t
1
Suppressed
12
t
2
Not suppressed
Remarks
N/A
N/A
By default, interface dampening is
disabled on Ethernet interfaces.
Ceiling
Suppress limit
Reuse limit
Time