This is an example of how to disable EEE
127.0.0.14 name: switch22378c Cisco SG350-28 (Advanced) Port Management / Green Ethernet / Properties Energy Detect Mode = unchecked Short Reach = unchecked Port LEDS = checked 802.3 EEE = unchecked (Advanced) Port Management / Green Ethernet / Port Settings Energy Detect Mode: Disabled Short Reach Mode: Disabled 802.3 Energy Efficient Ethernet (EEE) Mode: Disabled 802.3 EEE columns Administrative = Enabled for all LLDP Administrative = Enabled for all EEE Support on Remote (Column) flagged as "Yes" GE1 GE7 GE10 GE15 GE16 GE19 GE26 Status and Statistics / Health and Power Current Green Ethernet and Port Power Savings: 39% (4.08W out of 10.45W) Status and Statistics / View Log / RAM Memory 2147483416 2023-Dec-13 02:27:28 Warning %NT_GREEN-W-EeeLldpSingleNeighbour: Single LLDP neighbour on port gi7 - EEE operational state can be TRUE 2147483417 2023-Dec-13 02:19:50 Warning %NT_GREEN-W-EeeLldpSingleNeighbour: Single LLDP neighbor on port gi24 - EEE operational state can be TRUE
I found that if you select a port on the (Advanced) Port Management / Green Ethernet / Port Settings screen and click "Edit" many of the ports have EEE enabled. (https://community.cisco.com/t5/switches-small-business/completely-turn-off-eee-and-green-ethernet-on-sg300-sg-220/td-p/2806115)
Here I checked the error log for more information.
127.0.0.169 2147483296 2024-Jul-29 08:44:12 Warning %NT_GREEN-W-EeeLldpMultiNeighbours: Multiple LLDP neighbours on port gi5 - EEE operational state is FALSE 2147483300 2024-Jul-28 12:20:53 Warning %NT_GREEN-W-EeeLldpSingleNeighbour: Single LLDP neighbour on port gi11 - EEE operational state can be TRUE 2147483301 2024-Jul-28 11:46:18 Warning %NT_GREEN-W-EeeLldpMultiNeighbours: Multiple LLDP neighbours on port gi11 - EEE operational state is FALSE 2147483302 2024-Jul-28 11:42:44 Warning %STP-W-PORTSTATUS: gi7: STP status Forwarding 2147483303 2024-Jul-28 11:42:44 Warning %STP-W-PORTSTATUS: gi6: STP status Forwarding