In the middle of a live VLAN readressing of a 200-node company, I encountered
this gem. The ports just kept blinking on even after plugging out the cables.
(HP aruba 24 port switch) One turned off after a reboot.
The lights are combined link/act, not separate link act. left for upper side, right for lower side. 2 and 4 are blinking, 1 and 2 (the empty ports) are not.
It doesn’t seem to be, they look like different cables, look at the strain relief after the clear part, looks like a different pattern and shorter. They are probably both fully seated.