ZyXEL Communications Plumbing Product metrogigabit switch User Manual
MGS3700-12C User’s Guide
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H A P T E R
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Green Ethernet
This chapter shows you how to configure the Switch to reduce the overall power
consumption of switch.
consumption of switch.
34.1 Green Ethernet Overview
The purpose of Green Ethernet is to reduce the overall power consumption of
switch. It provides three features to save power in different scenarios. The three
features are EEE, Auto Power Down and Short Reach.
switch. It provides three features to save power in different scenarios. The three
features are EEE, Auto Power Down and Short Reach.
Auto Power Down is designed to save power when the port is link down. It disables
almost all functions of PHY in link down state. Recovery from this mode to normal
mode without frames lost.
almost all functions of PHY in link down state. Recovery from this mode to normal
mode without frames lost.
Enables “Auto Power down” function, it turns off the power to the Ethernet PHY
when either no cable is connected or the Ethernet port at the other end is down.
The PHY remains capable of detecting energy on the port and resuming normal
activity when an active device is connected to the port.
when either no cable is connected or the Ethernet port at the other end is down.
The PHY remains capable of detecting energy on the port and resuming normal
activity when an active device is connected to the port.
When all cables are disconnected from the switch, it is placed in a sleep mode,
further saving power while still remaining capable of detecting energy on any port
and resuming normal activity in a timely manner.
further saving power while still remaining capable of detecting energy on any port
and resuming normal activity in a timely manner.