Black Box LPB2910A, Руководство пользователя

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Publication date: Sept, 2015
Revision A1
16
Parameter description:
Optimize EEE for
The switch can be set to optimize EEE for either best power saving or least traffic latency.
 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 on for a
short moment to determine if 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.
To maximize power savings, the circuit isn’t started 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.
You can minimize the latency for specific frames by mapping the frames to a specific queue (done
with QOS), and then marking the queue as an urgent queue. When an urgent queue gets data to
be transmitted, the circuits will be powered up 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 transmitted.