FCoE allows for the transmission of which type of traffic?

FCoE, or Fibre Channel over Ethernet, is designed specifically to transmit lossless Ethernet traffic. This is crucial because FCoE enables the encapsulation of Fibre Channel frames within Ethernet frames while maintaining the quality of service required by storage protocols. The lossless nature of the Ethernet traffic used in FCoE implementations is achieved through mechanisms like Priority Flow Control (PFC) which prevents data loss during congestion by blocking lower-priority traffic.

In storage networking, particularly when dealing with critical data transfers, it's vital that the transmitted data retains integrity without loss. This sets FCoE apart from standard Ethernet traffic, which might not guarantee lossless transmission. Therefore, the correct choice reflects the fundamental requirement for reliable and efficient data transport in an FCoE architecture.