Reference Guide

Usage
Information
You can enable any number of 802.1p priorities for PFC. Queues to which PFC
priority traffic is mapped are lossless by default. Traffic may be interrupted due to
an interface flap (going down and coming up) when you reconfigure the lossless
queues for no-drop priorities in a PFC input policy and reapply the policy to an
interface.
The maximum number of lossless queues supported on the switch is two.
A PFC peer must support the configured priority traffic (as DCBX detects) to apply
PFC.
Related
Commands
dcb-input — creates a DCB input policy.
show dcb
Displays the data center bridging status, the number of PFC-enabled ports, and the number of PFC-
enabled queues.
Syntax
show dcb [stack-unit unit-number]
Parameters
unit number Enter the DCB unit number. The range is from 0 to 5.
Command
Modes
EXEC Privilege
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.
Usage
Information
Specify a stack-unit number on the Master switch in a stack.
Example
Dell# show dcb
stack-unit 0 port-set 0
DCB Status : Enabled
PFC Port Count : 56 (current), 56 (configured)
PFC Queue Count : 2 (current), 2 (configured)
show interface pfc
Displays the PFC configuration applied to ingress traffic on an interface, including priorities and link delay.
Syntax
show interface port-type slot/port pfc {summary | detail}
Parameters
port-type slot/
port pfc
Enter the port-type slot and port PFC information.
{summary |
detail}
Enter the keyword summary for a summary list of results or
enter the keyword
detail for a full list of results.
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FC Flex IO Modules