Fibre channel over Ethernet

摘要

The use of Ethernet as an underlying transport for Fiber Channel (FC) frames is disclosed in the Fiber Channel Over Ethernet (FCOE) protocol. In FCOE, the FC physical layer and part of the FC-2 link layer are replaced with the Ethernet physical and link layers. Each FC frame is encapsulated within an Ethernet Frame. The payload of the FCOE frame contains type information from the FC Start Of Frame (SOF) indicator, the FC header, an optional FC payload, and type information from the FC End Of Frame (EOF) indicator. In one embodiment, an Ethernet network carrying FCOE replaces a standard FC network. In another embodiment, devices implementing FCOE may be implemented in a blade server. The entire backplane is Ethernet, over which both storage and networking traffic can be run. The Ethernet links are connected to an Ethernet switch, a FCOE/FC converter, and a FC switch.

主权项

1. A non-transitory computer-readable storage medium having stored thereon a Fibre Channel Over Ethernet (FCOE) frame data structure for encapsulating a Fibre Channel (FC) frame within an Ethernet frame, the FCOE frame data structure comprising:
an Ethernet frame data structure comprising: a FCOE Start Of Frame (SOF) indicator according to a FC SOF indicator in the FC frame; a FCOE End Of Frame (EOF) indicator according to a EOF indicator in the FC frame; an Ethernet payload within the Ethernet frame data structure, the Ethernet payload containing type information extracted from a FC Start Of Frame (SOF) indicator, a FC header, and type information extracted from a FC End Of Frame (EOF) indicator, wherein the FC SOF and EOF indicators are of different types, each type represented by the type information extracted from the FC SOF and EOF indicators; and an Ethernet Media Access Control (MAC) header within the Ethernet frame data structure, the Ethernet MAC header comprising: an Ethernet MAC destination address translated from a FC destination address using an Address Resolution Protocol (ARP), an Ethernet MAC source address translated from a FC source address using the ARP, and an Ethertype value indicating that the Ethernet frame is a FCOE frame.