I know what FCoE is and all that stuff. My only confusion is when we say that Nexus 5K ports can be configured either as 10G Ethernet or FCoE ports, what that actually means? All Cisco video data sheets say this.
I know Nexus 5K supports FCoE as a switch. But, why would they say the ports can be configured as FCoE? If a physical port supports Ethernet, then it must also support FCoE frames, right? After all, FCoE frames are Ethernet frames carring is just another payload type (FC, EthType = 8906). So, for Ethernet, FCOE frames are just like any other traffic. What is special about a port being said as FCOE enabled port?
My own answer to is this. If the port is FCOE capable, it will look into the incoming frames and if Ethtype is 8906, it will forward to the FC part of the N5K. If any other EthType, forward it the LAN side of the N5K. Is this corret?
Also, if an Ethernet Switch is DCB capable, that is, CEE, do we call this as FCoE Switch? This switch is not going to open the Ethernet frames.
Looks like these definitions are not clear...
Would appreciate any help in clarifying this.
Thanks and Regards,