HP 5820X Series

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To do… Use the command… Remarks
2. Create a port group and enter
port group view
port-group manual port-group-
name
Required.
3. Assign Ethernet interfaces to
the port group
group-member interface-list Required.
4. Shut down all Ethernet
interfaces in the port group
shutdown
Optional.
By default, all Ethernet interfaces
in a port group are up. To bring
up all Ethernet interfaces shut
down manually in a port group,
use the undo shutdown command
in port group view.
5. Configure jumbo frame
support on all Ethernet
interfaces in the port group
jumboframe enable [ value ]
Optional.
By default, the device allows
jumbo frames within 10,000
bytes to pass through all Layer 2
Ethernet interfaces.
Enabling link-down port auto power-down
To save power, enable the link-down port auto power-down function on Ethernet interfaces. The switch
stops providing power to the interface if the interface is in the down state for a certain period of time
(depends on the specifications of the chip, and not configurable). In this case, the interface enters the
power save mode. When the interface goes up, the switch provides power to the interface.
To enable link-down port auto power-down on one or multiple Ethernet interfaces:
To do… Use the command… Remarks
1. Enter system view
system-view —
Enter Ethernet
interface view
interface interface-type interface-
number
2. Enter
Ethernet
interface
view or
port group
view
Enter port
group view
port-group manual port-group-
name
Use either command.
Configured in Ethernet interface
view, the setting takes effect on
the interface only.
Configured in port group view,
the setting takes effect on all ports
in the port group.
3. Enable link-down port auto
power-down on an Ethernet
interface
port auto-power-down
Required.
Disabled by default.
Setting speed options for auto negotiation on an Ethernet
interface
As shown in Figure 4, speed auto negotiation enables an Ethernet interface to negotiate with its peer for
the highest speed supported by both ends by default. You can narrow down the speed option list for
negotiation.