Dell C9000 series, Reference Manual

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Usage Information
NOTE: Please note that Dell Networking do not recommend to use this
command as it has been deprecated in the current 9.4.(0.0) release. A warning
message appears when you try to run this command indicating that you have to
use the dcb-map commands in the future.
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.
show dcb
Display the data center bridging status, the number of PFC-enabled ports, and the number of PFC-enabled
queues.
C9000 Series
Syntax
show dcb [stack-unit unit-number ] [port-set port-set-number ]
Parameters
unit-number Enter the DCB unit number.
port-set-number Enter the port-set number.
Command Modes EXEC Privilege
Command History This guide is platform-specific. For command information about other platforms, refer
to the relevant Dell Networking OS Command Line Reference Guide .
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.7(0.1) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information Specify a stack-unit number on the Master switch in a stack.
Data Center Bridging (DCB) 689