Administrator Guide

Parameters
value Enter the priority list value. Separate priority values with a comma; specify a priority range
with a dash; for example, priority-list 3,5-7. The range is from 0 to 7.
Defaults None
Command Modes PRIORITY-GROUP
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information By default:
• All 802.1p priorities are grouped in priority group 0.
• 100% of the port bandwidth is assigned to priority group 0. The complete bandwidth is equally assigned to
each priority class so that each class has 12 to 13%.
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
policy-name Enter the policy name. The maximum is 32 characters.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
If an error occurs in an ETS output-policy configuration, the configuration is ignored and the scheduler and
bandwidth allocation settings are reset to the ETS default values (all priorities are in the same ETS priority group
and bandwidth is allocated equally to each priority).
If an error occurs when a port receives a peer’s ETS configuration, the port’s configuration is reset to the
previously configured ETS output policy. If no ETS output policy was previously applied, the port is reset to the
default ETS parameters.
You can only associate output QoS policy profiles with the priority groups in the DCB output profile context;
output QoS policy profiles are not permitted on output policy-maps.
WRED, ECN, rate shaping, and rate limiting are not supported in output policies because DCBx does not negotiate
these parameters with peer devices. You can apply a QoS output policy with WRED and/or rate shaping on a
DCBx CIN-enabled interface.
If you enable the scheduler command for a QoS ETS output policy, no bandwidth percentage is assigned to the
policy.
486 Data Center Bridging (DCB)