Policy-Based Qos Commands - Dell Z9500 Command Reference Manual

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This guide is platform-specific. For command information about other platforms,

refer to the relevant Dell Networking OS Command Line Reference Guide.

The following is a list of the Dell Networking OS version history for this command.

Version 9.2(1.0)

Version 8.3.11.1

Version 8.3.7.0

Version 7.6.1.0

Version 7.5.1.0

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. The system 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.

bandwidth-percentage percentage

To remove the bandwidth percentage, use the no bandwidth-percentage

Introduced on the Z9500.

Introduced on the S4820T.

Introduced on the Z9000.

Introduced on the S4810.

Introduced on the S-Series.

Introduced on the C-Series.

Introduced on the E-Series.

Enter the percentage assignment of weight to the class/

queue. The range is from 1 to 100% (granularity 1%).

Quality of Service (QoS)