Administrator Guide

FC Flex IO Modules
This chapter provides a generic, broad-level description of the operations, capabilities, and configuration commands of the Fiber
Channel (FC) Flex IO module.
Topics:
• Fibre Channel over Ethernet for FC Flex IO Modules
• NPIV Proxy Gateway for FC Flex IO Modules
• description (for FCoE maps)
• fabric
• fabric-id vlan
• fcf-priority
• fc-map
• fcoe-map
• fka-adv-period
• interface vlan (NPIV proxy gateway)
• keepalive
• show fc switch
• show fcoe-map
• show npiv devices
• show running-config fcoe-map
Fibre Channel over Ethernet for FC Flex IO Modules
FCoE provides a converged Ethernet network that allows the combination of storage-area network (SAN) and LAN traffic on a
Layer 2 link by encapsulating Fibre Channel data into Ethernet frames.
The Aggregator, installed with the FC Flex IO module, functions as a top-of-rack edge switch that supports converged
enhanced Ethernet (CEE) traffic — Fibre channel over Ethernet (FCoE) for storage, Interprocess Communication (IPC) for
servers, and Ethernet local area network (LAN) (IP cloud) for data — as well as FC links to one or more storage area network
(SAN) fabrics.
FCoE works with the Ethernet enhancements provided in Data Center Bridging (DCB) to support lossless (no-drop) SAN and
LAN traffic. In addition, DCB provides flexible bandwidth sharing for different traffic types, such as LAN and SAN, according to
802.1p priority classes of service. DCBx should be enabled on the system before the FIP snooping feature is enabled.
All of the commands that are supported for FCoE on the I/O Aggregator apply to the FC Flex IO modules. Similarly, all of the
configuration procedures and the settings that are applicable for FCoE on the I/O Aggregator are valid for the FC Flex IO
modules.
NPIV Proxy Gateway for FC Flex IO Modules
The N-port identifier virtualization (NPIV) Proxy Gateway (NPG) feature provides FCoE-FC bridging capability on the M I/O
Aggregator with the FC Flex IO module switch, allowing server CNAs to communicate with SAN fabrics over the M I/O
Aggregator with the FC Flex IO module.
To configure the M I/O Aggregator with the FC Flex IO module to operate as an NPIV proxy gateway, use the following
commands:
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