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(Fibre Channel Over Ethernet) A protocol for transmitting Fibre Channel frames over 10G Ethernet. FCoE replaces the bottom Fibre Channel (FC) layers F0 and F1 with Enhanced Ethernet layers, enabling the same network port on a server to carry Fibre Channel frames to an FC storage device and Ethernet frames to the local network.

Enhanced Ethernet
Rather than regular Ethernet adapters, FCoE requires Enhanced Ethernet adapters on all nodes that support FCoE, and these adapters are called "converged network adapters" (CNAs). Regular Ethernet can lose packets under heavy congestion, but Enhanced Ethernet prevents packet loss by providing flow control. The FC to Ethernet conversion also takes place in the FCoE engine within the CNA. See Fibre Channel.

Typical FCoE Topology
Both IP traffic for the LAN and FC traffic for the SAN (storage network) ride over the same FCoE-based Ethernet port. Although a CNA may have two 10G Ethernet ports, they exist for redundancy, not to separate IP from FC traffic. Both the server and switch perform the FC to Ethernet and Ethernet to FC conversion in their respective CNAs.

The FCoE Frame
Each Fibre Channel (FC) frame is encapsulated within an FCoE frame, which becomes the payload of the Ethernet frame.
References in periodicals archive ?
John has been a key contributor in the INCITS (International Committee for Information Technology Standards) Fibre Channel Standards Group - T11 FC-BB-5/6 Workgroup which is focused on FCoE (Fibre Channel over Ethernet).
Although modularity may have had a contributing effect on the ability of the fire support team to provide indirect fires due to unforeseen second order effects on the field artillery, the FCoE has and currently is addressing these issues across the doctrine, organization, training, materiel, leadership, education, personnel, and facilities (DOTMLPF) domains.
The FCoE CFLP identified five operationally important languages for training: Dari, Pashto (Afghanistan), Iraqi Arabic, Korean, and Russian.
For more information on Emulex LightPulse FCoE CNAs, please visit: http://www.
In our opinion, FCoE is ready to be tested by those customers that want to run their storage traffic over a single, 10Gb converged fabric," said Dennis Martin, founder and president of computer industry analyst firm Demartek, a third party auditor of the test drive.
ATTO solutions provide connectivity to all storage interfaces including SCSI, SATA, iSCSI, SAS, Fibre Channel, FCoE and 10GbE.
These environments require 10GbE line-rate throughput for virtualised data and storage traffic, support for concurrent IP, FCoE and iSCSI and low CPU utilisation to allow for mobility of VMs.
The 8100 Series FCoE CNAs are the latest in an extensive list of HP network connectivity solutions from QLogic that includes InfiniBand(R), Fibre Channel, iSCSI and 10Gb Ethernet adapters.
FCoE allows customers to leverage native virtualization, clustering and security capabilities in Red Hat Enterprise Linux 5.
The Cisco and Dell combined solutions help customers simplify the management of their next-generation data center with a unified networking fabric that consolidates LAN, SAN and server cluster network environments into a single high speed 10 Gigabit Ethernet fabric that supports protocols such as Fibre Channel, FCoE, and Internet Small Computer Storage Interthce(iSCSI).
Based on the results, QLogic, along with HP and 12 other vendors, validated that FCoE networks are compatible with existing Fibre Channel storage, enabling quick adoption by customers.