Reference Guide

Defaults PFC mode is on.
Command Modes DCB INPUT POLICY
Command History
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on the MXL 10/40GbE Switch 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.
Related
Commands
dcb-input – creates a DCB input policy.
pfc no-drop queues
Configure the port queues that still functions as no-drop queues for lossless traffic.
S4810
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 0 to
3.
Defaults No lossless queues are configured.
Command Modes INTERFACE
Command History
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
The maximum number of lossless queues globally supported on the switch is two.
The following lists the dot1p priority-queue assignments.
dot1p Value in the
Incoming Frame
Description heading
0 0
1 0
611