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

Usage The minimum link delay must be greater than the round-trip transmission time a
Information peer must honor a PFC pause frame multiplied by the number of PFC-enabled
ingress ports.
Related dcb-input
Commands
pfc mode on
Enable the PFC configuration on the port so that the priorities are included in DCBX negotiation with peer
PFC devices.
Syntax
pfc mode on
To disable the PFC configuration, use the no pfc mode on command.
Defaults PFC mode is on.
Command DCB MAP
Modes
Command
Version 9.3(0.0)
History
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.

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
FC Flex IO Modules
— creates a DCB input policy.
Introduced on the MXL 10/40GbE Switch with the FC Flex IO
module.
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.
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