Brocade ICX: Fiber And Ethernet Ports

I wanted to write about the fiber ports on the ICX switches.  It used to be that they shared a port with the Ethernet ports.  Meaning, if you had a fiber port 1 connected, then the Ethernet port 1 could not be used.

However, on the ICX switches, you CAN use both ports.  I just thought Id put a reminder out there for that.  See below the config for the fiber ports on the ICX6450 switch.
ICXswitch(config)#vlan 2
ICXswitch(config-vlan-2)#untagged eth 1/2/1 to 1/2/4
Added untagged port(s) ethe 1/2/1 to 1/2/4 to port-vlan 2.
ICXswitch(config-vlan-2)#untagg eth 1/2/5
Error - invalid interface 1/2/5
ICXswitch(config-vlan-2)#