Operation Manual – Ethernet Interface
H3C S9500 Series Routing Switches
Chapter 1 Ethernet Interface Configuration
1-6
To do...
Use the command...
Remarks
Enable loopback testing
loopback
{
external
|
internal
}
Optional
Disabled by default.
Note:
z
Currently, the S9500 series routing switches do not support the external loopback
testing.
z
Internal loopback testing can only be enabled on interfaces in down state. That is, it
is unavailable to interfaces that are shut down manually.
z
The
speed, duplex, mdi
, and
shutdown
commands are not applicable during a
loopback testing.
z
With the loopback testing enabled, the Ethernet interface works in the full duplex
mode at highest speed. With the loopback testing enabled, the original
configurations will be restored.
1.1.7 Configuring a Manual Port Group
To make the configuration task easier for users, certain devices allow users to configure
on a single port as well as on multiple ports in a port group. In manual port group view,
the user only needs to input the configuration command once and that configuration will
apply to all ports in the port group. This effectively reduces redundant configurations.
Follow these steps to enter manual port group view:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter manual port group
view
port-group manual
port-group-name
—
Follow these steps to configure a manual port group:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Create a manual port
group and enter manual
port group view
port-group manual
port-group-name
Required
Add Ethernet interfaces to
the manual port group
group-member
interface-list
Required