Users Guide

To disable the PFC conguration, use the no pfc mode on command.
Defaults PFC mode is on.
Command Modes DCB MAP
Command History
Version Description
9.7(0.0) Introduced on the S6000-ON.
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 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.
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.
priority-group bandwidth pfc
Congure the ETS bandwidth allocation and PFC mode used to manage port trac in an 802.1p priority group.
Syntax
priority-group group-num {bandwidth percentage| strict-priority} pfc {on |
off}
Parameters
priority-group
group-num
Enter the keyword priority-group followed by the number of an 802.1p
priority group. Use the priority-pgid command to create the priority groups in
a DCB map.
bandwidth
percentage
Enter the keyword bandwidth followed by a bandwidth percentage allocated to
the priority group. The range of valid values is 1 to 100. The sum of all allocated
bandwidth percentages in priority groups in a DCB map must be 100%.
strict-priority Congure the priority-group trac to be handled with strict priority scheduling.
Strict-priority trac is serviced rst, before bandwidth allocated to other priority
groups is made available.
pfc {on | o} Congure whether priority-based ow control is enabled (on) or disabled (o) for
port trac in the priority group.
Defaults None
Command Modes DCB MAP
Data Center Bridging (DCB)
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