H3C Technologies H3C S5120 Series Switches - Manual (Page 86)

1-5
Enabling Auto Power Down on an Ethernet Port
When an Ethernet port does not receive any packet for a certain period of time, it automatically enters
the power save mode and resumes its normal state upon the arrival of a packet.
Follow these steps to enable auto power down on an Ethernet port:
To do… Use the command… Remarks
Enter system view system-view —
Enter
Ethernet port
view
interface interface-type
interface-number
Enter
Ethernet port
view or port
group view
Enter port
group view port-group manual
port-group-name
Use either command.
If configured in Ethernet port
view, this feature takes effect
on the current port only; if
configured in port group view,
this feature takes effect on all
ports in the port group.
Enable auto power down on an
Ethernet port
port auto-power-down
Required
Disabled by default
When you connect an interface enabled with auto power-down to a device, if the link cannot go up
properly, disable auto power-down on the interface and try again.
Configuring a Port Group
The devices allow you to configure some functions on multiple interfaces at a time by assigning the
interfaces to a port group in addition to configuring them on a per-interface basis. This is helpful when
you have to configure a feature in the same way on multiple interfaces.
A port group is created manually and the settings you made on it apply to all group member interfaces.
Note that even though the settings are made on the port group, they are saved on an interface basis
rather than on a port group basis. Thus, you can only view the settings in the view of each interface with
the display current-configuration command or the display this command.
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 ports to the manual
port group
group-member interface-list Required