Pfc No-Drop Queues - Dell MXL 10GbE Reference Manual

Command DCB INPUT POLICY
Modes
Command
Version 9.2(0.0)
History
Version 8.3.16.1
Usage
By applying a DCB input policy with PFC enabled, you enable PFC operation on
Information
ingress port traffic. To achieve complete lossless handling of traffic, also enable
PFC on all DCB egress ports or configure the dot1p priority-queue assignment of
PFC priorities to lossless queues (refer to pfc no-drop queues).
To disable PFC operation on an interface, enter the no pfc mode on command in
DCB Input Policy Configuration mode. PFC is enabled and disabled as global DCB
operation is enabled (dcb-enable) or disabled (no dcb-enable).
You cannot enable PFC and link-level flow control at the same time on an
interface.
Related dcb-input
Commands

pfc no-drop queues

Configure the port queues that still function as no-drop queues for lossless traffic.
Syntax
pfc no-drop queues queue-range
To remove the no-drop port queues, use the no pfc no-drop queues
command.
Parameters
queue-range
Defaults No lossless queues are configured.
Command INTERFACE
Modes
Command
Version 9.2(0.0)
History
Version 8.3.16.1
Usage
The maximum number of lossless queues globally supported on the switch is two.
Information
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1436
Introduced on the M I/O Aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Introduced on the MXL 10/40GbE Switch IO Module.
— creates a DCB input policy.
Enter the queue range. Separate the queue values with a
comma; specify a priority range with a dash; for example,
pfc no-drop queues 1,3 or pfc no-drop queues
2-3. The range is from 0 to 3.
Introduced on the M I/O Aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Introduced on the MXL 10/40GbE Switch IO Module.
The following lists the dot1p priority-queue assignments.
PMUX Mode of the MXL 10/40GbE Switch I/O Module