Deployment Guide

To disable PFC operation on an interface, enter the no pfc mode on command in DCB Input Policy
Conguration 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 ow control at the same time on an interface.
pfc no-drop queues
Congure the port queues that still function as no-drop queues for lossless trac.
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.
Defaults No lossless queues are congured.
Command Modes INTERFACE
Supported Modes Programmable-Mux (PMUX)
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.4(0.0) Supported on the FN I/O Aggregator.
9.2(0.0) Introduced on the M I/O Aggregator.
8.3.16.1 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
2 0
3 1
4 2
5 3
6 3
7 3
Data Center Bridging (DCB) 117