Why Are There 2 Triangle Light Indicators For Every Port

businessuer
businessuer Posts: 134  Ally Member
First Anniversary Friend Collector First Comment
edited August 2022 in Switch
Hi, 
For zyxel switches, why Are There 2 Triangle Light Indicators For Every Port?
I understand that those pointing to the top refers to the interface on top.
I understand that those pointing to the bottom refers to the interface on bottom.
But why 2 triangles for each interface? 

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