Users Guide

NOTE: Please note that Dell Networking does not recommended to use this command as it has
been deprecated in the current 9.4(0.0) release. A warning message appears when you try to run
this command indicating that you have to use the dcb-map commands in the future.
priority-group bandwidth pfc
Congure the ETS bandwidth allocation and PFC mode used to manage port trac 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 Congure the priority-group trac to be handled with strict priority scheduling.
Strict-priority trac is serviced rst, before bandwidth allocated to other priority
groups is made available.
pfc {on | o} Congure whether priority-based ow control is enabled (on) or disabled (o) for
port trac 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 congure 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 congure PFC and ETS trac handling for
each priority group in a DCB map.
You can enable PFC on a maximum of two priority queues.
If you congure more than one priority group as strict priority, the higher numbered priority queue is given
preference when scheduling data trac.
Data Center Bridging (DCB)
499