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An FCoE map applies the following parameters on server-facing Ethernet and fabric-facing FC ports:
• The dedicated FCoE VLAN used to transport FCoE storage trac.
• The FC-MAP value used to generate a fabric-provided MAC address.
• The association between the FCoE VLAN ID and FC fabric ID where the desired storage arrays are installed. Each Fibre Channel fabric
serves as an isolated SAN topology within the same physical network.
• A server uses the priority to select an upstream FCoE forwarder (FCF priority).
• FIP keepalive (FKA) advertisement timeout.
NOTE: In each FCoE map, the fabric ID, FC-MAP value, and FCoE VLAN must be unique. To access one SAN fabric, use one
FCoE map. You cannot use the same FCoE map to access dierent fabrics.
When you congure an S5000 as an NPG, FCoE transit with FIP snooping is automatically enabled and congured using the parameters in
the FCoE map applied to server-facing Ethernet and fabric-facing FC interfaces (refer to FIP Snooping on an NPIV Proxy Gateway).
After you apply an FCoE map on an FC port, when you enable the port (using the no shutdown command), the NPG starts sending FIP
multicast advertisements on behalf of the FC port to downstream servers to advertise the availability of a new FCF port on the FCoE
VLAN. The FIP advertisement also contains a keepalive message to maintain connectivity between a SAN fabric and downstream servers.
Applying an FCoE Map on Server-Facing Ethernet Ports
You can apply multiple FCoE maps on an Ethernet port or port channel.
When you apply an FCoE map on a server-facing port or port channel:
• The port is congured to operate in hybrid mode (accept both tagged and untagged VLAN frames).
• The associated FCoE VLAN is enabled on the port or port channel.
When you enable a server-facing Ethernet port, the servers respond to the FIP advertisements by performing FLOGIs on upstream
virtualized FCF ports. The NPG forwards the FLOGIs as fabric discovery (FDISC) messages to a SAN switch.
1 Congure a server-facing Ethernet port or port channel with an FCoE map.
CONFIGURATION mode
interface {tengigabitEthernet slot/port | fortygigabitEthernet slot/port | port-channel num}
2 Apply the FCoE/FC conguration in an FCoE map on the Ethernet port.
INTERFACE mode or INTERFACE PORT_CHANNEL mode
fcoe-map map-name
Repeat this step to apply an FCoE map to more than one port.
For example:
Dell# interface tengigabitEthernet 0/0
Dell(config-if-te-0/0)# fcoe-map SAN_FABRIC_A
Dell# interface port-channel 3
Dell(config-if-po-3)# fcoe-map SAN_FABRIC_A
Dell# interface fortygigabitEthernet 0/48
Dell(config-if-fo-0/0)# fcoe-map SAN_FABRIC_A
3 Enable the port for FCoE transmission using the map settings.
INTERFACE mode
no shutdown
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