Planet GS-5220-16S8C User Manual page 91

When a port is powered down for saving power, outgoing traffic is stored in a buffer until the port is powered up again. Because
there are some overhead in turning the port down and up, more power can be saved if the traffic can be buffered up until a large
burst of traffic can be transmitted. Buffering traffic will give some latency in the traffic
The Page includes the following fields:
Object
 Port
 ActiPHY
 PerfectReach

EEE
Buttons
Figure 4-4-5: Port Power Saving Configuration for Switch Page Screenshot
Description
The switch port number of the logical port.
Link down power savings enabled.
ActiPHY works by lowering the power for a port when there is no link. The port is
power up for short moment in order to determine if cable is inserted
Cable length power savings enabled.
PerfectReach works by determining the cable length and lowering the power for
ports with short cables
Controls whether EEE is enabled for this switch port.
User's Manual of GS-5220-16S8C & GS-5220-16S8CR
91