Command Line Reference Guide

Quality of Service (QoS) | 1191

Quality of Service (QoS)

Overview

Dell Networking OS commands for Quality of Service (QoS) include traffic conditioning and

congestion control. QoS commands are not universally supported on all Dell Networking platforms.

Support is indicated by the c e and s characters under command headings.

This chapter contains the following sections:

• Global Configuration Commands

• Per-Port QoS Commands

• Policy-Based QoS Commands

• Queue-Level Debugging (E-Series Only)

Global Configuration Commands

• qos-rate-adjust

qos-rate-adjust

c e s

By default, while rate limiting, policing, and shaping, Dell Networking OS 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

Defaults

QoS Rate Adjustment is disabled by default, and no qos-rate-adjust is listed in the

running-configuration

Command Modes

CONFIGURATION

Command

History

overhead-bytes

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

Version 8.3.1.0 Introduced