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priority-group bandwidth pfc
Configure the ETS bandwidth allocation and PFC mode used to manage port traffic in an 802.1p priority
group.
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.
bandwidth
percentage
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%.
strict-priority Configure the priority-group traffic to be handled with strict
priority scheduling. Strict-priority traffic is serviced first,
before bandwidth allocated to other priority groups is made
available.
pfc {on | off} Configure whether priority-based flow control is enabled
(on) or disabled (off) for port traffic in the priority group.
Defaults None
Command
Modes
DCB MAP
Command
History
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S4810, S6000 platforms.
Usage
Information
Use the dcb-map command to configure priority groups with PFC and/or ETS
settings and apply them to Ethernet interfaces.
Use the priority-pgid command to map 802.1p priorities to a priority group.
You can assign each 802.1p priority to only 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.
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.
Data Center Bridging (DCB)
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