Service Manual

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.
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}
Parameters
port-type slot/
port[/subport]
ets
Enter the port-type slot and port ETS information. Enter the subport number if a
40G port is fanned-out into 10G ports.
{summary |
detail}
Enter the keyword summary for a summary list of results or enter the keyword
detail for a full list of results.
NOTE: This command also enables you to view information corresponding to a range of ports.
However, for Open Networking (ON) platforms the notation for specifying port range in the
command is different from how you specify in non-ON platforms.
● For non-ON platforms, you can specify multiple ports as slot/port-range. For example, if you
want to display information corresponding to all ports between 1 and 4, specify the port range as
show interfaces interface-type 1/1 - 4.
436 Data Center Bridging (DCB)