Priority-Group Bandwidth Pfc - Dell C9000 Series Reference Manual

Networking command-line reference guide

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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

Using the priority-pgid command, you assign each 802.1p priority to one priority

group. A priority group consists of 802.1p priority values that are grouped together 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. For example, the priority-pgid 0 0 0 1 2 4 4 4 command

creates the following groups of 802.1p priority traffic:

To remove a priority-pgid configuration from a DCB map, enter the no priority-

pgid command.

priority-group bandwidth pfc

Configure the ETS bandwidth allocation and PFC mode used to manage port traffic in an 802.1p priority

C9000 Series

priority-group group-num {bandwidth percentage| strict-priority}

pfc {on | off}

priority-group

Introduced on the S4810, S6000 platforms.

Priority group 0 contains traffic with dot1p priorities 0, 1, and 2.

Priority group 1 contains traffic with dot1p priority 3.

Priority group 2 contains traffic with dot1p priority 4.

Priority group 4 contains traffic with dot1p priority 5, 6, and 7.

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.

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%.

Data Center Bridging (DCB)

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