Dell PowerConnect 8100 Series CLI Reference Guide - Page 469
Green Ethernet Commands, Energy-Detect Mode, Energy Efficient Ethernet, Commands in
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17 Green Ethernet Commands PowerConnect switches support various Green Ethernet modes, i.e., power saving modes, namely: • Energy-Detect Mode • Energy Efficient Ethernet These modes can enable significant operational cost reductions through direct power savings and reducing cooling costs. Energy-Detect Mode With this mode enabled, when the port link is down the PHY automatically goes down for short periods of time and then wakes up periodically to check for link pulses. This reduces power consumption when no link partner is present. This feature is currently available only on GE copper ports. Energy Efficient Ethernet Energy Efficient Ethernet (EEE) combines the MAC with a family of PHYs that support operation in a Low Power Mode as defined by the IEEE 802.3az Energy Efficient Ethernet Task Force. Lower Power Mode enables both the send and receive sides of the link to disable some functionality for power savings when lightly loaded. Transition to Low Power Mode does not change the link status. Frames in transit are not dropped or corrupted in transition to and from Low Power Mode. Transition time is transparent to upper layer protocols and applications. LLDP must be enabled in order to EEE to operate on a link. Commands in this Chapter This chapter explains the following commands: green-mode energy-detect - green-mode eee - Green Ethernet Commands 469
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