Users Guide

Term Description
FCF Fibre Channel forwarder: FCoE-enabled switch that can forward
FC trac to both downstream FCoE and upstream FC devices.
An NPIV proxy gateway functions as an FCF to export upstream
F port congurations to downstream server CNA ports.
FC-MAP FCoE MAC-address prex — The unique 24-bit MAC address
prex in FCoE packets used to generate a fabric-provided MAC
address (FPMA). The FPMA is required to send FCoE packets
from a server to a SAN fabric.
FCoE map Template used to congure FCoE and FC parameters on
Ethernet and FC ports in a converged fabric.
FCoE VLAN VLAN dedicated to carrying only FCoE trac between server
CNA ports and a SAN fabric. (FCoE trac must travel in a
VLAN.) When you apply an FCoE map on a port, FCoE is
enabled on the port. All non-FCoE trac 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 identier 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 congure DCB functionality, such as PFC and ETS, on Ethernet ports that support CEE trac, 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, congure 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 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).
NPIV Proxy Gateway
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