Port Management
Green Ethernet
Cisco 350XG & 550XG Series 10G Stackable Managed Switches
185
10
These modes are configured per port, without taking into account the LAG
membership of the ports.
The device LEDs are power consumers. Since most of the time the devices are in
an unoccupied room, having these LEDs lit is a waste of energy. The Green
Ethernet feature enables you to disable the port LEDs (for link, speed, and PoE)
when they are not required, and to enable the LEDs if they are needed (debugging,
connecting additional devices etc.).
On the System Summary page, the LEDs that are displayed on the device board
pictures are not affected by disabling the LEDs.
Power savings, current power consumption and cumulative energy saved can be
monitored. The total amount of saved energy can be viewed as a percentage of
the power that would have been consumed by the physical interfaces had they
not been running in Green Ethernet mode.
The saved energy displayed is only related to Green Ethernet. The amount of
energy saved by EEE is not displayed.
Power Saving by Disabling Port LEDs
The Disable Port LEDs feature saves power consumed by device LEDs. Since the
devices are often in an unoccupied room, having these LEDs lit is a waste of
energy. The Green Ethernet feature enables you to disable the port LEDs (for link,
speed, and PoE) when they are not required, and to enable the LEDs if they are
needed (debugging, connecting additional devices etc.).
On the System Summary page, the LEDs that are displayed on the device board
pictures are not affected by disabling the LEDs.
Port LEDs can be disabled on the
page.
802.3az Energy Efficient Ethernet Feature
This section describes the 802.3az Energy Efficient Ethernet (EEE) feature.
It covers the following topics:
•
•
Advertise Capabilities Negotiation
•
Link Level Discovery for 802.3az EEE
•
