Reference Guide

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.
Related
Commands
• scheduler — schedules the priority traffic in port queues.
• bandwidth-percentage — bandwidth percentage allocated to the priority traffic
in port queues.
scheduler
Configure the method used to schedule priority traffic in port queues.
Syntax
scheduler value
To remove the configured priority schedule, use the no scheduler command.
Parameters
value Enter schedule priority value. The range: strict: strict-priority
traffic is serviced before any other queued traffic.
Defaults Weighted Elastic Round Robin (WERR) scheduling is used to queue priority traffic.
Command
Modes
POLICY-MAP-OUT-ETS
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
dot1p priority traffic on the switch is scheduled to the current queue mapping.
dot1p priorities within the same queue must have the same traffic properties and
scheduling method.
ETS-assigned scheduling applies only to data queues, not to control queues.
The configuration of bandwidth allocation and strict-queue scheduling is not
supported at the same time for a priority group. If you configure both, the
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Data Center Bridging (DCB)