Service Manual

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 — schedule 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, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
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
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 configured
bandwidth allocation is ignored for priority-group traffic when you apply the output
policy on an interface.
Data Center Bridging (DCB) 610