Administrator Guide

show stack-unit stack-ports pfc details
Displays the PFC configuration applied to ingress traffic on stacked ports, including PFC Operational
mode on each unit with the configured priorities, link delay, and number of pause packets sent and
received.
Syntax
show stack-unit {all | stack-unit} stack-ports {all | port-
number} pfc details
Parameters
stack-unit Enter the stack unit.
port-number Enter the port number.
Command
Modes
CONFIGURATION
Command
History
Version 9.3.0.0 Introduced on the FC Flex IO module installed in the M I/O
Aggregator and MXL 10/40GbE Switch.
Example
Dell(conf)# show stack-unit all stack-ports all pfc details
stack unit 0 stack-port all
Admin mode is On
Admin is enabled, Priority list is 4-5
Local is enabled, Priority list is 4-5
Link Delay 45556 pause quantum
0 Pause Tx pkts, 0 Pause Rx pkts
stack unit 1 stack-port all
Admin mode is On
Admin is enabled, Priority list is 4-5
Local is enabled, Priority list is 4-5
Link Delay 45556 pause quantum
0 Pause Tx pkts, 0 Pause Rx pkts
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 Fibre Channel (FC) Flex IO module is supported on Dell Networking Operating System (OS) MXL
10/40GbE Switch and M I/O Aggregator (IOA). The MXL and IOA switch 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 MXL and 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 MXL and I/O Aggregator are valid for the FC Flex IO modules.
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FC Flex IO Modules