Users Guide

priority-group
To use with an ETS output policy, create an ETS priority group.
Syntax
priority-group group-name
To remove the priority group, use the no priority-group command.
Parameters
group-name Enter the name of the ETS priority group. The maximum is 32 characters.
Defaults none
Command Modes CONFIGURATION
Supported Modes Programmable-Mux (PMUX)
Command History
Version Description
9.4(0.0) Supported on the FN I/O Aggregator.
9.2(0.0) Introduced on the M I/O Aggregator.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
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.
You must congure 802.1p priorities in priority groups associated with an ETS output policy. You can assign
each dot1p priority to only one priority group.
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.
If you congure more than one priority queue as strict priority or more than one priority group as strict
priority, the higher numbered priority queue is given preference when scheduling data trac.
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.
Syntax
priority-group group-num {bandwidth percentage| strict-priority} pfc {on |
off}
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%.
108
Data Center Bridging (DCB)