Which FCIP protocol stack layer supports FC frame encapsulation?

The FCIP (Fibre Channel over IP) protocol stack uses TCP (Transmission Control Protocol) to encapsulate Fibre Channel frames for transmission over IP networks. TCP provides a reliable, connection-oriented transport layer that ensures the ordered delivery of data, making it suitable for encapsulating the FC frames and transporting them across IP networks. This enables the extension of Fibre Channel networks over long distances using existing IP infrastructure.References:

Dell EMC Information Storage and Management V5, Module on SAN and FCIP