Remember to click " Apply " button after you finish your setting.
Then, return to VLAN page, and the screen displays as below:
Afterwards, you click to select Port 4 and Port 5 for the purpose of
overlapping. Remember to click " Apply " button after you finish
your setting.
Now you have create two VLAN Groups ( Group1 VID=1 and
Group2 VID=2 ) with overlapping ports ( Port 4 & Port 5 ).
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