so i've changed the XFP's, an i'm getting more confused!
2:6 --> 1:5, the Status goes from !UNKN to !XFP_SR
i've placed a "new" used XFP in port 1:6, an it's marked as !XFP_SR
the XFP from port 1:6 went's to port 1:4 and stays in Status !UNKN
and finaly, the now empty Slot 2:6 shows the Status !NONE
FW 15.7.1.4 patch 1-1
================================================================================
1:1 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:1 XFP_SR
1:2 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:2 XFP_SR
1:3 VR-Default E R OFF 10000 FULL 1:3 NONE
1:4 VR-Default E R OFF 10000 FULL 1:4 !UNKN
1:5 VR-Default E R OFF 10000 FULL !XFP_SR
1:6 VR-Default E A OFF 10000 10000 FULL FULL NONE !XFP_SR
1:7 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:7 XFP_SR
1:8 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:8 XFP_SR
2:1 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:1 XFP_SR
2:2 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:2 XFP_SR
2:3 VR-Default E R OFF 10000 FULL 1:3 NONE
2:4 VR-Default E R OFF 10000 FULL 1:4 NONE
2:5 VR-Default E R OFF 10000 FULL NONE
2:6 VR-Default E R OFF 10000 FULL !NONE
2:7 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:7 XFP_SR
2:8 VR-Default E A OFF 10000 10000 FULL FULL NONE 1:8 XFP_SR
================================================================================