Administrator Guide

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.
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
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
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.
If you enable this command for a QoS ETS output policy, no bandwidth percentage is assigned to the policy.
Related
Commands
• qos-policy-output ets — configure the ETS bandwidth allocation.
• bandwidth-percentage — bandwidth percentage allocated to priority traffic in port queues.
show interface ets
Displays the ETS configuration applied to egress traffic on an interface, including priority groups with priorities and bandwidth allocation.
Syntax
show interface port-type slot/port[/subport] ets {summary | detail}
Data Center Bridging (DCB) 487