Administrator Guide

NOTE: The IEEE 802.1Qaz, CEE, and CIN versions of ETS are supported.
Creating an ETS Priority Group
An ETS priority group species the range of 802.1p priority trac to which a QoS output policy with ETS settings is applied on an
egress interface.
1. Congure a DCB Map.
CONFIGURATION mode
dcb-map dcb-map-name
The dcb-map-name variable can have a maximum of 32 characters.
2. Create an ETS priority group.
CONFIGURATION mode
priority-group group-num {bandwidth bandwidth | strict-priority} [[committed | peak]
bandwidth [burst-size] [peak | committed] bandwidth [burst-size]] pfc off
The range for priority group is from 0 to 7.
Set the bandwidth in percentage. The percentage range is from 1 to 100% in units of 1%.
Committed and peak bandwidth is in megabits per second. The range is from 0 to 40000.
Committed and peak burst size is in kilobytes. Default is 50. The range is from 0 to 10000.
3. Congure the 802.1p priorities for the trac on which you want to apply an ETS output policy.
PRIORITY-GROUP mode
priority-list value
The range is from 0 to 7.
The default is none.
Separate priority values with a comma. Specify a priority range with a dash. For example, priority-list 3,5-7.
4. Exit priority-group conguration mode.
PRIORITY-GROUP mode
exit
5. Repeat Steps 1 to 4 to congure all remaining dot1p priorities in an ETS priority group.
Dell Networking OS Behavior: A priority group consists of 802.1p priority values that are grouped for 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.
Congure all 802.1p priorities in priority groups associated with an ETS output policy. You can assign each dot1p priority to only one
priority group.
By default, all 802.1p priorities are grouped in priority group 0 and 100% of the port bandwidth is assigned to priority group 0. The
complete bandwidth is equally assigned to each priority class so that each class has 12 to 13%.
The maximum number of priority groups supported in ETS output policies on an interface is equal to the number of data queues (4)
on the port. The 802.1p priorities in a priority group can map to multiple queues.
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Data Center Bridging (DCB)