Deployment Guide

• FCoE gateway that provides FCoE-to-FC bridging. N-port virtualization using FCoE maps exposes upstream F ports as FCF ports to
downstream server-facing ENode ports on the NPG.
NPIV Proxy Gateway: Terms and Denitions
The following table describes the terms used in an NPG conguration on the Aggregator.
Table 39. Aggregator with the NPIV Proxy Gateway: Terms and Denitions
Term Description
FC port Fibre Channel port on the Aggregator that operates in autosensing, 2, 4, or 8-Gigabit mode. On
an NPIV proxy gateway, an FC port can be used as a downlink for a server connection and an
uplink for a fabric connection.
F port Port mode of an FC port connected to an end node (N) port on an Aggregator with the NPIV
proxy gateway.
N port Port mode of an Aggregator with the FC port that connects to an F port on an FC switch in a
SAN fabric. On an Aggregator with the NPIV proxy gateway, an N port also functions as a proxy
for multiple server CNA-port connections.
ENode port Port mode of a server-facing Aggregator with the Ethernet port that provides access to FCF
functionality on a fabric.
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 congure DCB parameters, including priority-based ow 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 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. 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 identier virtualization: The capability to map multiple FCoE links from downstream ports
to a single upstream FC link.
320 NPIV Proxy Gateway