Administrator Guide

When you configure a switch 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.
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 first 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 traffic and SAN fabric where the storage
arrays are installed. Use a separate FCoE VLAN for each fabric to which FCoE traffic is forwarded. Any
non-FCoE traffic 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 traffic 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 Configure 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.
For example:
fabric id 10 vlan 10
3 Add a text description of the settings in the FCoE map.
FCoE MAP mode
description text
FC FPORT 330