Dell PowerConnect 2848 User's Guide - Page 108

Configuring Green Ethernet, LAG Configuration Table, Energy-Detect, Short-Reach

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The LAG Configuration Table opens: Figure 7-10. LAG Configuration Table Configuring Green Ethernet Green Ethernet, also known as Energy Efficient Ethernet, is an effort to make networking equipment environmentally friendly, specifically by reducing power usage of Ethernet connections. The following methods are supported by the device: • Energy-Detect - Auto-detection of inactivity on a port, and subsequent turning down of transmit power. It may take about 1 second for the cable to power-up when it becomes active again. • Short-Reach - Reduction of power over Ethernet cables shorter than 40m. The cable length is detected automatically with an accuracy of +/- 10m. These methods are relevant for copper cables only, and are incompatible with fiber cable or when the link is set to auto-selection of copper/fiber. The short-reach method is only for a link established at 1 Gigabyte, and is not compatible with Fast Ethernet. To open the Green Ethernet Configuration page, click Switch→ Ports→ Green Ethernet Configuration in the tree view. 108 Update with your book title

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108
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The
LAG Configuration Table
opens:
Figure 7-10.
LAG Configuration Table
Configuring Green Ethernet
Green Ethernet, also known as Energy Efficient Ethernet, is an effort to make networking equipment
environmentally friendly, specifically by reducing power usage of Ethernet connections. The following
methods are supported
by the device:
•
Energy-Detect
— Auto-detection of inactivity on a port, and subsequent turning down of transmit
power. It may take about 1 second for the cable to power-up when it becomes active again.
•
Short-Reach
— Reduction of power over Ethernet cables shorter than 40m. The cable length is
detected automatically with an accuracy of +/- 10m.
These methods are relevant for copper cables only, and are incompatible with fiber cable or when the link is
set to auto-selection of copper/fiber.
The short-reach method is only for a link established at 1 Gigabyte, and is not compatible with Fast
Ethernet.
To open the
Green Ethernet Configuration
page, click
Switch
→
Ports
→
Green Ethernet Configuration
in the tree view.