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Quality of Service (QoS)
The Dell Networking Operating System (OS) commands for quality of service (QoS) include traffic
conditioning and congestion control.
This chapter contains the following sections:
•
Global Configuration Commands
•
Per-Port QoS Commands
•
Policy-Based QoS Commands
Global Configuration Commands
There are only two global configuration QoS commands.
qos-rate-adjust
By default, while rate limiting, policing, and shaping, the system does not include the Preamble, SFD, or
the IFG fields. These fields are overhead; only the fields from MAC destination address to the CRC are
used for forwarding and are included in these rate metering calculations. You can optionally include
overhead fields in rate metering calculations by enabling QoS Rate Adjustment.
Syntax
qos-rate-adjustment
overhead-bytes
Parameters
overhead-bytes
Include a specified 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, and
no qos-rate-adjust
is listed in
the running-configuration
Command
Modes
CONFIGURATION
Command
History
Version 8.3.16.1
Introduced on the MXL 10/40GbE Switch IO Module.
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Quality of Service (QoS)