Black Box LPB2910A User Manual page 29

Parameter d escription:
Optimize E EE f or
The s witch c an b e s et t o o ptimize E EE f or e ither b est p ower s aving o r l east t raffic l atency.
 Port:
The s witch p ort n umber o f t he l ogical p ort.
ActiPHY:

Link d own p ower s avings e nabled.
ActiPHY w orks b y l owering t he p ower f or a p ort w hen t here i s n o l ink. T he p ort i s p owered o n f or a
short m oment t o d etermine i f c able i s i nserted.
 PerfectReach:
Cable l ength p ower s avings e nabled.
PerfectReach works by determining the cable length and lowering the power for ports with short
cables.
EEE:

Controls w hether E EE i s e nabled f or t his s witch p ort.
To maximize power savings, the circuit isn't started once transmit data is ready for a port, but is
instead q ueued u ntil a b urst o f d ata i s r eady t o b e t ransmitted. T his w ill g ive s ome t raffic l atency.
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 U rgent Q ueues:

Queues set will activate transmission of frames as soon as data is available. Otherwise, the queue
will p ostpone t ransmission u ntil a b urst o f f rames c an b e t ransmitted.
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Publication date: Sept, 2015
Revision A1