FCoE encapsulates FC frames over Ethernet networks, using 10 Gbps (or higher) Ethernet networks at layers 1 and 2. But the rest remain FC protocols stacks, (note that FC is a complete network stack, so no IP, UDP, or TCP protocols are used) and you still need specific FC skills (for example, for fabric zoning), plus specific new skills for converged networks (such as DCB protocols).

For CNA cards, you can use NPAR and enable hardware assisted FCoE at ESXi level, with the right driver, you will see a new VMware storage adapter called vmhba acting like a traditional FC HBA. The rest of the configuration is all at the fabric and storage levels as described before.

In vSphere 5.0, VMware introduced a new software FCoE adapter, useful for NIC with a partial FCoE offload. In this case, you also need to configure the virtual switches part to bind a VMkernel port to a virtual switch connected to this NIC. FCoE traffic does not go through the virtual switch, but to manage DCB and other control traffic, you need this network configuration to forward Ethernet frames to the dcbd service in the user world.