Users Guide

NOTE: 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.
2. Apply the DCB map on an Ethernet port or port channel.
INTERFACE mode
dcb-map name
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
To apply a DCB map to more than one port or port channel, repeat this step.
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 de-capsulated FC frames over FC links to SAN switches in a specied fabric.
Create the dedicated VLAN for FCoE trac.
CONFIGURATION mode
interface vlan vlan-id
NOTE: VLAN 1002 is commonly used to transmit FCoE trac.
When you apply an FCoE map to an Ethernet port, the port automatically congures as a tagged member of the FCoE VLAN. For
more information, refer to Applying a DCB Map on Server-Facing Ethernet Ports.
FCoE Maps
To identify the SAN fabric to which FCoE storage trac is sent, use an FCoE map.
Using an FCoE map, an NPG operates as an FCoE-FC bridge between an FC SAN and FCoE network by providing FCoE-enabled
servers and switches with the necessary parameters to log in to a SAN fabric.
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.
574
NPIV Proxy Gateway