Enabling Auto Power-Down On An Ethernet Interface - H3C S5560S-EI Series Configuration Manual

• TxRx-mode generic flow control—Enabled by using the flow-control command. With
TxRx-mode generic flow control enabled, an interface can both send and receive flow control
frames:
When congestion occurs, the interface sends a flow control frame to its peer.
When the interface receives a flow control frame from its peer, it suspends sending packets
to its peer.
• Rx-mode generic flow control—Enabled by using the flow-control receive enable
command. With Rx-mode generic flow control enabled, an interface can receive flow control
frames, but it cannot send flow control frames:
When congestion occurs, the interface cannot send flow control frames to its peer.
When the interface receives a flow control frame from its peer, it suspends sending packets
to its peer.
To handle unidirectional traffic congestion on a link, configure the flow-control receive enable
command at one end and the flow-control command at the other end. To enable both ends of a link
to handle traffic congestion, configure the flow-control command at both ends.
To enable generic flow control on an Ethernet interface:
Step
1.
Enter system view.
2.
Enter Ethernet interface
view.
3.
Enable generic flow
control.

Enabling auto power-down on an Ethernet interface

IMPORTANT:
Fiber ports do not support this feature.
When an Ethernet interface with auto power-down enabled has been down for a certain period of
time, both of the following events occur:
•
The device automatically stops supplying power to the Ethernet interface.
•
The Ethernet interface enters the power save mode.
The time period depends on the chip specifications and is not configurable.
When the Ethernet interface comes up, both of the following events occur:
•
The device automatically restores power supply to the Ethernet interface.
•
The Ethernet interface restores to its normal state.
To enable auto power-down on an Ethernet interface:
Step
1.
Enter system view.
Command
system-view
interface interface-type
interface-number
•
Enable TxRx-mode
generic flow control:
flow-control
•
Enable Rx-mode generic
flow control:
flow-control receive
enable
Command
system-view
7
Remarks
N/A
N/A
By default, generic flow control is
disabled on an Ethernet interface.
Remarks
N/A