H3C WA Series, Руководство по настройке, Страница: 14 / 76

4-3
To do… Use the command… Remarks
Enter system view
system-view
—
Enter Ethernet interface view
interface interface-type
interface-number
—
Enable loopback testing
loopback
{
external
|
internal
}
Optional
Disabled by default.
z
On an interface that is physically down, you can perform only internal loopback testing. On an
interface administratively shut down, you can perform neither internal nor external loopback
testing.
z
The
speed
,
duplex
, and
shutdown
commands are unavailable during loopback testing.
z
During loopback testing, an Ethernet interface works in full duplex mode. When you disable
loopback testing, the duplex setting of the interface restores.
Configuring a Layer 2 Ethernet Interface
Layer 2 Ethernet Interface Configuration Task List
Complete these tasks to configure a Layer 2 Ethernet interface:
Task Remarks
Configuring Storm Suppression
Optional
Applicable to Layer 2 Ethernet interfaces
Setting the Interface Statistics Polling Interval
Optional
Applicable to Layer 2 Ethernet interfaces
Enabling Loopback Detection on an Ethernet Interface
Optional
Applicable to Layer 2 Ethernet interfaces
Configuring Storm Suppression
You can use the storm suppression function to limit the size of a particular type of traffic (currently
broadcast, multicast and unknown unicast traffic) on Ethernet interfaces in Ethernet interface view.
When the broadcast, multicast, or unknown unicast traffic on the interface exceeds the threshold, the
system discards packets until the traffic drops below the threshold.
Follow these steps to set storm suppression thresholds on an Ethernet interface:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter Ethernet interface view
interface interface-type
interface-number
Settings made in Ethernet interface
view take effect on the current
interface only.