Administrator Guide

74 Switch Feature Overview
Green Technology Features
For information about configuring Green Technology features, see "Port
Characteristics " on page 591.
Energy Detect Mode
When the Energy Detect mode is enabled and the port link is down, the PHY
automatically goes down for short period of time and then wakes up
periodically to check link pulses. This mode reduces power consumption on
the port when no link partner is present. Energy Detect is proprietary and
operates independently from EEE.
Energy Efficient Ethernet
The switch supports the IEEE 802.3az Energy Efficient Ethernet (EEE)
Lower Power Idle Mode, which enables both the send and receive sides of the
link to disable some functionality for power savings when the link is lightly
loaded. EEE is standardized and operates independently of Energy Detect.
EEE and Energy Detect are supported on the Dell Networking N1500,
N2000, and N3000 Series 1G copper ports. EEE and energy detect are
supported on the Dell Networking N4000 Series 10G copper ports.
EEE and Energy Detect are disabled by default on the Dell Networking
N2000 and N3000 Series copper ports. Energy Detect is enabled by default on
the Dell Networking N4000 Series switches and cannot be disabled. EEE is
disabled by default on the Dell Networking N4000 Series 10G copper ports.
Power Utilization Reporting
The switch displays the current power consumption of the power supply (or
power supplies). This information is available from the management
interface.