Reference Guide

output QoS policy. The bandwidth-weight command in QOS-POLICY-OUT
mode supercedes the service-class bandwidth-weight command.
strict-priority queue
Configure a unicast queue as a strict-priority (SP) queue.
S5000
Syntax
strict-priority queue unicast number
Parameters
unicast number Enter the keyword unicast followed by the queue number.
The range is 1 to 3.
Defaults none
Command
Modes
CONFIGURATION
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
After you configure a unicast queue as strict-priority, that particular queue, on the
entire chassis, is treated as a strict-priority queue. 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 unicast traffic into one
of four classes on the S5000. Dell Networking OS allows 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.
S5000
Syntax
bandwidth-percentage percentage
Quality of Service (QoS)
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