Users Guide

• Priority group 2 contains trac with dot1p priority 4.
• Priority group 4 contains trac with dot1p priority 5, 6, and 7.
To remove a priority-pgid conguration from a DCB map, enter the no priority-pgid command.
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 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}
[[committed | peak ] | [peak | committed] {<0-40000>} [<0-10000>]] 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.
578
Data Center Bridging (DCB)