Users Guide

Creating an FCoE VLAN
Create a dedicated VLAN to send and receive Fibre Channel traffic over FCoE links between servers and a
fabric over an NPG.
The NPG receives FCoE traffic and forwards de-capsulated FC frames over FC links to SAN switches in a
specified fabric.
Create the dedicated VLAN for FCoE traffic.
CONFIGURATION mode
interface vlan vlan-id
NOTE: VLAN 1002 is commonly used to transmit FCoE traffic.
When you apply an FCoE map to an Ethernet port, the port automatically configures 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 traffic 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 traffic.
• 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 different fabrics.
When you configure an S5000 as an NPG, FCoE transit with FIP snooping is automatically enabled and
configured 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.
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