Service Manual

pfc mode on
Enable the PFC conguration on the port so that the priorities are included in DCBX negotiation with peer PFC devices.
Syntax
pfc mode on
To disable the PFC conguration, use the no pfc mode on command.
Defaults PFC mode is on.
Command Modes DCB INPUT POLICY
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON and Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
NOTE: Please note that Dell Networking does not recommended to use this command as it has been
deprecated in the current 9.4.(0.0) release. A warning message appears when you try to run this
command indicating that you have to use the dcb-map commands in the future.
By applying a DCB input policy with PFC enabled, you enable PFC operation on ingress port trac. To achieve
complete lossless handling of trac, also enable PFC on all DCB egress ports or congure 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
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 7
or pfc no-drop queues 0,7. The range is from 0 to 3.
Data Center Bridging (DCB) 475