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Table 105. Aggregator with the NPIV Proxy Gateway: Terms and Definitions (continued)
Term Description
CNA port N-port functionality on an FCoE-enabled server port. A converged network adapter
(CNA) can use one or more Ethernet ports. CNAs can encapsulate Fibre Channel frames
in Ethernet for FCoE transport and de-encapsulate Fibre Channel frames from FCoE to
native Fibre Channel.
DCB map Template used to configure DCB parameters, including priority-based flow control (PFC)
and enhanced transmission selection (ETS), on CEE ports.
Fibre Channel fabric Network of Fibre Channel devices and storage arrays that inter-operate and
communicate.
FCF Fibre Channel forwarder: FCoE-enabled switch that can forward FC traffic to both
downstream FCoE and upstream FC devices. An NPIV proxy gateway functions as an
FCF to export upstream F port configurations to downstream server CNA ports.
FC-MAP FCoE MAC-address prefix The unique 24-bit MAC address prefix 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 configure FCoE and FC parameters on Ethernet and FC ports in a
converged fabric.
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. FIP is used by server CNAs 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
A Data Center Bridging (DCB) map is used to configure DCB functionality, such as PFC and ETS, on the Aggregator with the
Ethernet ports that support CEE traffic and are DCBx-enabled, by default.
By default, no PFC and ETS settings in a DCB map are applied to the Aggregator with the Ethernet ports when they are
enabled. On an Aggregator with the NPG, you must configure PFC and ETS parameters in a DCB map and then apply the map to
server-facing Ethernet ports.
FCoE Maps
An FCoE map is used to identify the SAN fabric to which FCoE storage traffic is sent. Using an FCoE map, an Aggregator
with the 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 on the Aggregator:
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.
The priority used by a server to select an upstream FCoE forwarder (FCF priority).
FIP keepalive (FKA) advertisement timeout.
NOTE:
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