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An EEE-enabled device initiates Low Power Idle (LPI) signals to negotiate and wake up the remote device when there is data to be transmitted. To use EEE, both devices should be EEE compliant.
EEE is configured on a per-system basis in the Switch. If one of the networking devices that connect to the Switch doesn't support EEE, EEE may not work in the Switch to save power.
Press in the IEEE 802.3az EEE ON/OFF button on the front panel to turn on the EEE feature. Disable it if you don't want the network performance to be impacted due to the latency from the additional time required for the sleep and wake transition or if the remote side doesn't support it.
Isso basicamente diz que se o dispositivo um conectado ao switch não suportar 802.3az, a função de economia de energia pode não funcionar, difícil de ser contada, portanto, tente. Mas isso leva a uma ligeira latência, então se isso for um problema, desligue a função de economia de energia.