Command Line Reference Guide

Usage
Information
The minimum link delay must be greater than the round-trip transmission time a
peer must honor a PFC pause frame multiplied by the number of PFC-enabled
ingress ports.
Related
Commands
dcb-input — creates a DCB input policy.
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
Modes
DCB MAP
Command
History
Version 9.3(0.0) Introduced on the MXL 10/40GbE Switch with the FC Flex IO
module.
Usage
Information
By applying a DCB input policy with PFC enabled, you enable PFC operation on
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 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.
FC Flex IO Modules
1397