Reference Guide

636 | NPIV Proxy Gateway
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NPIV Proxy Gateway: Terms and Definitions
Table 34-1 describes the terms used in an NPG configuration on the S5000.
Table 34-1. S5000 NPIV Proxy Gateway: Terms and Definitions
Term Description
FC port Fibre Channel port on an S5000 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 an S5000 NPIV proxy
gateway.
N port Port mode of an S5000 FC port that connects to an F port on an FC switch in a SAN
fabric. On an S5000 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 S5000 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 have the capability to 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.