Administrator Guide

Table 101. FN IOM with the FC Flex IO module NPIV Proxy Gateway: Terms and Denitions
Term Description
FC port Fibre Channel port on the FN IOM with the FC Flex IO module FC module 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 the FN IOM with the FC Flex IO
module NPIV proxy gateway.
N port Port mode of the FN IOM with the FC Flex IO module FC port that connects to an F port on an
FC switch in a SAN fabric. On the FN IOM with the FC Flex IO module 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 FN IOM with the FC Flex IO module 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 interoperate 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.
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 congure DCB functionality, such as PFC and ETS, on FN IOM with the FC Flex IO module
Ethernet ports that support CEE trac and are DCBx-enabled, by default. For more information, on PFC and ETS, see Data Center
Bridging (DCB).
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FC Flex IO Modules