Reference Guide

462 | Data Center Bridging
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Command
History
Usage
Information
A priority group consists of 802.1p priority values that are grouped together for similar bandwidth
allocation and scheduling, and that share the same latency and loss requirements. All 802.1p priorities
mapped to the same queue should be in the same priority group.
All 802.1p priorities should be configured 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
Related
Commands
priority-group qos-policy
Associate the 802.1p priority traffic in a priority group with the ETS configuration in a QoS output
policy.
Syntax
priority-group group-name qos-policy ets-policy-name
To remove the 802.1p priority group, use the no priority-group qos-policy command.
Parameters
Defaults
none
Command Modes
DCB OUTPUT POLICY
Command
History
Usage
Information
The ETS configuration associated with 802.1p priority traffic in a DCB output policy is used in DCBX
negotiation with ETS peers.
If you disable ETS in an output policy applied to an interface using the no ets mode on command, any
previously configured QoS settings at the interface or global level take effect. If QoS settings are
configured at the interface or global level and in an output policy map (service-policy output
command), the QoS configuration in the output policy takes precedence.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module
priority-list Configure the 802.1p priorities for an ETS output policy.
set-pgid Configure the priority-group.
group-name
Enter the group name of the 802.1p priority group.
Maximum: 32 characters.
ets-policy-name
Enter the ETS policy name.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module