Allied Telesis AT-GS950/8 - Manual (Page 88)

Chapter 5: Virtual LANs
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Disable - This disables Ingress Filtering at the selected port.
6. Click Apply.
The port configuration becomes effective.
7. If you need to configure other ports of the switch for the VLAN Port
Settings, repeat steps 4 through 7.
8. From the main menu on the left side of the page, select Save
Configuration to Flash to permanently save your changes.