Enabling energy saving features on an Ethernet interface
Enabling auto power-down on an Ethernet interface
![[IMPORTANT: ]](images/important.png) | IMPORTANT: Fiber ports do not support this feature. | |
When the auto power-down feature is enabled on an interface and the interface has been down for a certain period of time, both of the following events occur:
The switch automatically stops supplying power to the interface.
The interface enters the power save mode.
The time period depends on the chip specifications and is not configurable.
When the interface comes up, both of the following events occur:
The switch automatically restores power supply to the interface.
The interface enters its normal state.
To enable auto power-down on an Ethernet interface:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter Ethernet interface view. | interface interface-type interface-number | N/A |
3. Enable auto power-down. | port auto-power-down | By default, auto power-down is disabled. |
Enabling EEE energy saving for Ethernet interfaces in up state
| IMPORTANT: Fiber ports do not support this feature. | |
With the Energy Efficient Ethernet (EEE) energy saving feature, a link-up port enters the low power state if it has not received any packet for a certain period of time. The time period depends on the chip specifications and is not configurable. When a packet arrives later, the switch automatically restores power supply to the interface and the port enters the normal state.
To enable EEE energy saving:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter Ethernet interface view. | interface interface-type interface-number | N/A |
3. Enable EEE energy saving. | eee enable | By default, EEE energy saving is disabled. |