Application Guide

[18]
Software User's
Manual
–
Version 3.0
Port Configuration
Setting Description
Port The switch port number of the logical port.
ActiPHY
Link down power savings enabled. ActiPHY works by lowering the power for
a port when there is no link. The port is powered up for a short moment in
order to determine if
a
cable is inserted.
PerfectReach
Cable length power savings enabled. PerfectReach works by determining the
cable length and lowering the power for ports with short cables.
EEE
Controls whether EEE is enabled for this switch port. For maximizing power
savings, the circuit isn’t started immediately once transmit data is ready for a
port but is instead queued until a burst of data is ready to be transmitted. This
will give some traffic latency. If desired, it is possible to minimize the latency
for specific frames by mapping the frames to a specific queue (done with
QOS), and then mark the queue as an urgent queue. When an urgent queue
gets data to be transmitted, the circuits will be powered up at once and the
latency will be reduced to the wakeup time.
EEE Urgent
Queues
Queues set will activate transmission of frames as soon as data is available.
Otherwise the queue will postpone transmission until a burst of frames can be
transmi
tted.