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Quality of Service (QoS)
Overview
FTOS commands for Quality of Service (QoS) include traffic conditioning and congestion control.
QoS commands are not universally supported on all Dell Force10 platforms. Support is indicated by
the
This chapter contains the following sections:
•
•
•
•
Global Configuration Commands
•
qos-rate-adjust
c e s
By default, while rate limiting, policing, and shaping, FTOS 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
Defaults
QoS Rate Adjustment is disabled by default, and no qos-rate-adjust is listed in the
running-configuration
Command Modes
CONFIGURATION
Command
Version 8.3.1.0
History
c e
s
and
characters under command headings.
Global Configuration Commands
Per-Port QoS Commands
Policy-Based QoS Commands
Queue-Level Debugging
(E-Series Only)
qos-rate-adjust
Include a specified number of bytes of packet overhead to include in rate limiting,
policing, and shaping calculations.
C-Series and S-Series Range: 1-31
E-Series Range: 1-144
Introduced
47
Quality of Service (QoS) | 1179
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