Users Guide

Term Description
FCoE VLAN VLAN dedicated to carrying only FCoE traffic
between server CNA ports and a SAN fabric. (FCoE
traffic must travel in a VLAN.) When you apply an
FCoE map on a port, FCoE is enabled on the port. All
non-FCoE traffic is dropped on an FCoE VLAN.
FIP FCoE Initialization Protocol: Layer 2 protocol for
endpoint discovery, fabric login, and fabric
association. Server CNAs use FIP to discover an
upstream FCoE switch operating as an FCF. FIP
keepalive messages maintain the connection
between an FCoE initiator and an FCF.
NPIV N-port identifier virtualization: The capability to map
multiple FCoE links from downstream ports to a
single upstream FC link.
principal switch The switch in a fabric with the lowest domain
number. The principal switch accesses the master
name database and the zone/zone set database.
DCB Maps
To configure DCB functionality, such as PFC and ETS, on Ethernet ports that support CEE traffic, use a data
center bridging (DCB) map.
DCB maps are DCBx-enabled by default. For more about PFC and ETS, refer to Data Center Bridging (DCB).
By default, no PFC and ETS settings in a DCB map are applied to Ethernet ports when you enable them. On an
NPG, configure PFC and ETS parameters in a DCB map and then apply the map to server-facing Ethernet
ports (for more information, refer to Creating a DCB Map).
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.
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