Deployment Guide
FCoE Maps
To identify the SAN fabric to which FCoE storage trac 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 trac.
• 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.
When you congure a switch as an NPG, FCoE transit with FIP snooping is automatically enabled and congured using the parameters in
the FCoE map applied to server-facing Ethernet and fabric-facing FC interfaces.
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.
NOTE
: After removing and reapplying the fabric map or after modifying the FCoE map, the Fiber Channel (FC) devices do not re-
login. To mitigate this issue, you must rst run the shut command and then the no shutdown command on each member
interface after you alter the FCOE map.
Creating an FCoE Map
An FCoE map consists of the following elements.
• An association between the dedicated VLAN used to carry FCoE trac and SAN fabric where the storage arrays are installed. Use a
separate FCoE VLAN for each fabric to which 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 server uses the FPMA to transmit FCoE trac to
the fabric. You can associate an FC-MAP with only one FCoE VLAN and vice versa.
• FCF priority: a CNA server uses the priority 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.
1 Create an FCoE map which contains parameters used in the communication between servers and a SAN fabric.
CONFIGURATION mode
fcoe-map map-name
2 Congure the association between the dedicated VLAN and the fabric where the desired storage arrays are installed.
FCoE MAP mode
fabric-id fabric-num vlan vlan-id
The fabric and VLAN ID numbers must be the same.
The fabric and VLAN ID range is from 2 to 4094.
284
FC FPORT