<P> Fibre Channel over Ethernet (FCoE) is a computer network technology that encapsulates Fibre Channel frames over Ethernet networks . This allows Fibre Channel to use 10 Gigabit Ethernet networks (or higher speeds) while preserving the Fibre Channel protocol . The specification was part of the International Committee for Information Technology Standards T11 FC - BB - 5 standard published in 2009 . </P> <P> FCoE transports Fibre Channel directly over Ethernet while being independent of the Ethernet forwarding scheme . The FCoE protocol specification replaces the FC0 and FC1 layers of the Fibre Channel stack with Ethernet . By retaining the native Fibre Channel constructs, FCoE was meant to integrate with existing Fibre Channel networks and management software . </P> <P> Data centers used Ethernet for TCP / IP networks and Fibre Channel for storage area networks (SANs). With FCoE, Fibre Channel becomes another network protocol running on Ethernet, alongside traditional Internet Protocol (IP) traffic . FCoE operates directly above Ethernet in the network protocol stack, in contrast to iSCSI which runs on top of TCP and IP . As a consequence, FCoE is not routable at the IP layer, and will not work across routed IP networks . </P> <P> Since classical Ethernet had no priority - based flow control, unlike Fibre Channel, FCoE required enhancements to the Ethernet standard to support a priority - based flow control mechanism (to reduce frame loss from congestion). The IEEE standards body added priorities in the data center bridging Task Group . </P>

Which type of technology encapsulates fibre channel communications over tcp/ip