What is Converged Ethernet? - Lots of terms that essentially mean the same thing
- Unified Fabric
- Unified Wire
- Converged Ethernet
- Converged Enhanced Ethernet
- Data Center Ethernet
- Data Center Bridging
- What they all really mean:
- Ethernet and Fibre Channel both on the same infrastructure
FCOE Terminology - FCoE Initialization Protocol (FIP) ENode
- FCoE Forwarder (FCF) Switch Running FCOE
- ENode uses Virtual Fibre Channel (VFC) Interface
- Virtual Port Types
- VN_Port End host UCS C end server
- VF_Port Nexus 5K switch
- VE_Port Switch to Switch
How FCoE Works - FCoE replaces layer 1 and 2 transport for Fibre Channel with Ethernet
- All upper layer FC services remain
- Domain ID's, FSFP, FCNS, FLOGI, Zoning, etc....
- New FCoE Initialization Protocol (FIP) to negotiate between Fabric port and Node Port
- Fabric is the FCF
- Node is the ENode
FIP vs. FCoE - FIP is the control plane of the FCoE
- FCoE is the actual data plane
- FIP
- New EtherType 0x8914
- Used to discover FCF's and perform FLOGI
- FCoE
- New EtherType 8x8906
- Max length of 2240 bytes
- Will need Jumbo frame enabled
Output for a "show policy-map system" where you set the MTU FCoE Addressing - Fibre Channel uses 3 byte FCID's
- Ethernet uses 6 byte MAC Addresses
- How do we correlate the two?
- FCoE ENode get a Fabric Provided MAC Address (FPMA) for FCoE
- Still uses it's regular MAC for LAN Traffic
Fabric Provided MAC addresses (FPMA's) - During FIP, ENode is assigned a 3 byte FCID
- FCF is configured with a 3 byte FCoE MAC address Prefix (FC-MAP)
- ENode appends FC-MAP to FCID
- 3 byte FC-MAP + 3 byte FCID= 6 byte FPMA
Configuring FCoE - FCF's config is only a few additional steps:
- Feature fcoe (NPV)
- Create a VSAN
- Associate VLAN to a VLAN
- Configure a VFC (for each ENode)
- Associate Physical Ethernet to the VFC
- Assign VFC to the VSAN

- Configure physical Ethernet as a Trunk\
Show flogi to show that it's logged into the fabric
show fcoe for FPMA address
Good Cisco Live Session for FCOE
BRKDCT-1044 - FCoE for the IP Network Engineer
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