Reference Guide

Data Center Bridging (DCB) | 327
Defaults
0x10
Command Modes
PROTOCOL LLDP
Command History
Usage Information
This command is available at the global level only.
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 INPUT POLICY
Command History
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, you must also enable PFC on all DCB egress ports or
configure the dot1p priority-queue assignment of PFC priorities to lossless queues (see 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-output) or
disabled (no dcb-output).
PFC and link-level flow control cannot be enabled at the same time on an interface.
pfc no-drop queues
Configure the port queues that will 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
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module
S6000
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module
S6000
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 7 or pfc no-drop queues 0,7.
Range: 0 to 3.