Concept Guide
Applying a DCB Map on Server-facing Ethernet Ports
You can apply a DCB map only on a physical Ethernet interface and can apply only one DCB map per interface.
1 Enter CONFIGURATION mode on a server-facing port or port channel to apply a DCB map.
You cannot apply a DCB map on a port channel. However, you can apply a DCB map on the ports that are members of the port
channel.
CONFIGURATION mode
interface {tengigabitEthernet slot/port }
2 Apply the DCB map on an Ethernet port or port channel. The port is congured with the PFC and ETS settings in the DCB map.
Repeat this step to apply a DCB map to more than one port or port channel.
INTERFACE mode
dcb-map name
Dell# interface tengigabitEthernet 0/0
Dell(config-if-te-0/0)# dcb-map SAN_DCB1
Creating an FCoE VLAN
Create a dedicated VLAN to send and receive Fibre Channel trac over FCoE links between servers and a fabric over an NPG. The NPG
receives FCoE trac and forwards decapsulated FC frames over FC links to SAN switches in a specied fabric.
1 Create the dedicated VLAN for FCoE trac. Range: 2–4094.
VLAN 1002 is commonly used to transmit FCoE trac.
CONFIGURATION mode
interface vlan vlan-id
When you apply an FCoE map to an Ethernet port , the port is automatically congured as a tagged member of the FCoE VLAN.
Creating an FCoE Map
An FCoE map consists of:
• An association between the dedicated VLAN, used to carry FCoE trac, and the SAN fabric where the storage arrays are installed. Use
a separate FCoE VLAN for each fabric to which the FCoE trac is forwarded. Any non-FCoE trac sent on a dedicated FCoE VLAN is
dropped.
• The FC-MAP value, used to generate the fabric-provided MAC address (FPMA). The FPMA is used by servers to transmit FCoE trac
to the fabric. You can associate an FC-MAP with only one FCoE VLAN and conversely, associate an FCoE VLAN with only one FC-
MAP.
• FCF priority, the priority used by a server CNA to select an upstream FCoE forwarder (FCF).
• FIP keepalive (FKA) advertisement timeout.
The values for the FCoE VLAN, fabric ID and FC-MAP must be unique. Apply an FCoE map on downstream server-facing Ethernet ports
and upstream fabric-facing Fibre Channel ports.
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