Administrator Guide

Repeat the priority-group bandwidth pfc command to configure PFC and ETS traffic handling
for each priority group in a DCB map.
You can enable PFC on a maximum of two priority queues.
If you configure more than one priority group as strict priority, the higher numbered priority queue is given
preference when scheduling data traffic.
If a priority group does not use its allocated bandwidth, the unused bandwidth is made available to other
priority groups.
To remove a priority-group configuration in a DCB map, enter the no priority-group bandwidth
pfc command.
By default, equal bandwidth is assigned to each dot1p priority in a priority group. Use the bandwidth
parameter to configure the bandwidth percentage assigned to a priority group. The sum of the bandwidth
allocated to all priority groups in a DCB map must be 100% of the bandwidth on the link. You must
allocate at least 1% of the total port bandwidth to each priority group.
Related
Commands
priority-pgid – Configures the 802.1p priority traffic in a priority group for a DCB map.
priority-pgid
Assign 802.1p priority traffic to a priority group in a DCB map.
Syntax
priority-pgid dot1p0_group-num dot1p1_group-num dot1p2_group-num
dot1p3_group-num dot1p4_group-num dot1p5_group-num dot1p6_group-num
dot1p7_group-num
Parameters
dot1p0_group-
num
Enter the priority group number for each 802.1p class of traffic in a DCB map.
dot1p1_group-
num
dot1p2_group-
num
dot1p3_group-
num
dot1p4_group-
num
dot1p5_group-
num
dot1p6_group-
num
dot1p7_group-
num
Defaults None
Command Modes DCB MAP
Supported Modes Programmable-Mux (PMUX)
Command
History
Version Description
9.4(0.0) Supported on the FN I/O Aggregator.
9.3(0.0) Introduced on the FC Flex IO module installed in the M I/O Aggregator.
Usage
Information
PFC and ETS settings are not pre-configured on Ethernet ports. You must use the dcb-map command to
configure different groups of 802.1p priorities with PFC and ETS settings.
100 Data Center Bridging (DCB)