Reference Guide

Data Center Bridging | 99
priority-group
Use this command with an ETS output policy, to create an ETS priority group.
Syntax
priority-group group-name
To remove the priority group, use the no priority-group command.
Parameters
Defaults
None
Command Mode
CONFIGURATION
Command
History
Usage
Information
This command is supported in Programmable-Mux (PMUX) mode only.
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 configure all 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 configure 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 traffic.
You must fully define the priority-group profile with a PGID and priorities before mapping it to a QoS
policy because the PGID and priorities are unique keys of the traffic class group (TCG) that define the
QoS policy.
Related
Commands
priority-list - configures the 802.1p priorities for an ETS output policy.
set-pgid - configures the priority-group.
qos-policy-output ets
To configure the ETS bandwidth allocation and scheduling for priority traffic, create a QoS output
policy.
Syntax
qos-policy-output policy-name ets
To remove the QoS output policy, use the no qos-policy-output ets command.
Parameters
Command Mode
CONFIGURATION
group-name
Enter the name of the ETS priority group. The maximum is 32 characters.
Version 9.2(0.0) Supported on the M I/O Aggregator
policy-name
Enter the policy name. The maximum is 32 characters.