Service Manual
Version Description
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 congure a unicast queue as strict-priority, that particular queue, on the entire chassis, is treated as a
strict-priority queue. Trac for a strict priority is scheduled before any other queues are serviced. For
example, if you send 100% line rate trac over the SP queue, it starves all other queues on the ports on which this
trac is owing.
Policy-Based QoS Commands
Policy-based trac classication is handled with class maps. These maps classify data trac 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.
S4048–ON
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-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
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.
Quality of Service (QoS) 1271