Service Manual
similar bandwidth allocation and scheduling, and that share latency and loss requirements. All 802.1p priorities
mapped to the same queue must be in the same priority group.
Repeat the priority-group bandwidth pfc command to congure PFC and ETS trac handling for each
priority group in a DCB map.
You can enable PFC on a maximum of two priority queues.
If you congure more than one priority group as strict priority, the higher numbered priority queue is given
preference when scheduling data trac.
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 conguration 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 congure 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.
dcb-map stack-unit all stack-ports all
Apply the specied DCB map on all ports of the switch stack.
Syntax
dcb-map stack-unit all stack-ports all dcb-map-name
To remove the PFC and ETS settings in a DCB map from all stack units, use the no dcb-map stack-unit
all stack-ports all command.
Parameters
dcb-map-name Enter the name of the DCB map.
Defaults None
Command Modes CONFIGURATION
Command History
This guide is platform-specic. 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.
9.3(0.0) Introduced on the S4810 and S6000 platforms.
Usage Information The dcb-map stack-unit all stack-ports all command overwrites any previous DCB maps applied
to stack ports.
504 Data Center Bridging (DCB)