Administrator Guide

If you delete the dot1p priority-to-priority group mapping (no priority pgid command) before you apply the new DCB
map, the default PFC and ETS parameters are applied on the interfaces. This change may create a DCB mismatch with peer
DCB devices and interrupt the network operation.
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.
Step Task Command Command Mode
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.
interface
{tengigabitEthernet slot/
port | fortygigabitEthernet
slot/port}
CONFIGURATION
2
Apply the DCB map on an Ethernet port or port channel.
The port is congured with the PFC and ETS settings in
the DCB map, for example:
Dell# interface tengigabitEthernet 0/0
Dell(config-if-te-0/0)# dcb-map SAN_DCB1
Repeat this step to apply a DCB map to more than one
port or port channel.
dcb-map
name
INTERFACE
Creating an FCoE VLAN
Create a dedicated VLAN to send and receive Fibre Channel trac over FCoE links between servers and a fabric over an NPG. The
NPG receives FCoE trac and forwards decapsulated FC frames over FC links to SAN switches in a specied fabric.
Step
Task Command Command Mode
1
Create the dedicated VLAN for FCoE trac.
Range: 2-4094.
VLAN 1002 is commonly used to transmit FCoE trac.
interface vlan vlan-id
CONFIGURATION
When you apply an FCoE map to an Ethernet port (Applying an FCoE map on server-facing Ethernet ports), the port is automatically
congured 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 trac, and the SAN fabric where the storage arrays are
installed. Use a separate FCoE VLAN for each fabric to which the FCoE trac is forwarded. Any non-FCoE trac 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
trac 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.
FC Flex IO Modules
933