I have the following situation:
I have a Switch summit x670. I have configured 2-port QSFP + as 4x10G each, in which I am connecting a cable with MPO connector to 6 lc connectors.
The problem is that when I connect the cable, I have no link nor in the QSFP + port, nor in SFP + ports.
I have configured the ports to 10000 speed, full duplex, auto off. I have also assigned four vlans tag and untag one in each port 10g.
I appreciate the support.
Sorry for my bad English.