Developers Guide

strict-priority unicast
Configure a unicast queue as a strict-priority (SP) queue.
Syntax
strict-priority unicast number
Parameters
unicast number Enter the keyword unicast then the queue number. The range is from 1 to 3.
Defaults none
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.1.1.1 Introduced on the E-Series.
Usage
Information
After you configure a unicast queue as strict-priority, that particular queue, on the entire chassis, is
treated as a strict-priority unicast. Traffic for a strict priority is scheduled before any other
queues are serviced. For example, if you send 100% line rate traffic over the SP queue, it starves all other
queues on the ports on which this traffic is flowing.
Policy-Based QoS Commands
Policy-based traffic classification is handled with class maps. These maps classify data traffic into one of eight classes . Dell
EMC Networking OS enables you to match multiple class maps and specify multiple match criteria. Policy-based QoS is not
supported on logical interfaces, such as port-channels, VLANS, or loopbacks.
bandwidth-percentage
Assign a percentage of weight to the class/queue.
Syntax
bandwidth-percentage percentage
To remove the bandwidth percentage, use the no bandwidth-percentage command.
1232 Quality of Service (QoS)