Users Guide

Policy-Based QoS Commands
Policy-based traffic classification is handled with class maps. These maps classify data traffic into one of eight classes . Dell
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.
Parameters
percentage Enter the percentage assignment of bandwidth to the class/queue. The range is
from 1 to 100% (granularity 1%).
Defaults none
Command Modes CONFIGURATION (conf-qos-policy-out)
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(0.0) Introduced on the S6100-ON.
9.8(1.0) Introduced on the Z9100-ON.
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.
8.3.1.9.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
6.2.1.1 Introduced on the E-Series.
Usage
Information
The unit of bandwidth percentage is 1%. If the sum of the bandwidth percentages given to all eight
classes exceeds 100%, the bandwidth percentage automatically scales down to 100%.
Related
Commands
● qos-policy-output — creates a QoS output policy.
buffer-stats-snapshot
Enable the buffer statistics tracking utility and enter the Buffer Statistics Snapshot configuration mode. You must enable this
utility to be able to configure the parameters for buffer statistics tracking.
Syntax
[No] buffer-stats-snapshot
Quality of Service (QoS) 1055