Users Guide

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Quality of Service (QoS)
The Dell Networking operating software commands for quality of service (QoS) include trac conditioning and congestion control.
QoS commands are not universally supported on all Dell Networking Products. platform.
Global Conguration Commands
There is only one global conguration QoS command.
qos-rate-adjust
By default, while rate limiting, policing, and shaping, Dell Networking OS does not include the Preamble, SFD, or the IFG elds. These
elds are overhead; only the elds from MAC destination address to the CRC are used for forwarding and are included in these rate
metering calculations. You can optionally include overhead elds in rate metering calculations by enabling QoS Rate Adjustment.
S3048–ON
Syntax
qos-rate-adjustment overhead-bytes
Parameters
overhead-bytes Include a specied number of bytes of packet overhead to include in rate limiting,
policing, and shaping calculations. The range is from 1 to 31.
Defaults QoS rate adjustment is disabled by default.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. 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 Description
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.
8.3.1.0 Introduced.
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Quality of Service (QoS)