Administrator Guide

Command
History
This guide is platform-specific. For command information about other platforms, see 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
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
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 Added fallback to the E-Series.
8.2.1.0 Added dot1p to the C-Series and S-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
7.4.1.0 Added dot1p and IPv6 DSCP.
6.1.1.1 Introduced on the E-Series
Usage
Information
When you configure trust, matched bytes/packets counters are not incremented in the show qos
statistics command.
Dynamic mapping honors packets marked according to the standard definitions of DSCP. The following
lists the default mapping.
Table 10. Default Mapping
DSCP/CP hex
Range (XXX)
DSCP Definition Traditional IP
Precedence
C9010 Internal
Queue ID
DSCP/CP
Decimal
111XXX Network Control 7 48–63
110XXX Internetwork
Control
6 48–63
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 5 32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 4 32–47
011XXX AF3 Flash 3 16–31
010XXX AF2 Immediate 2 16–31
001XXX AF1 Priority 1 0–15
000XXX BE (Best Effort) Best Effort 0 0–15
wred
Configure a WRED profile for yellow or green traffic.
C9000 Series
Syntax
wred {yellow | green} profile-name
To remove the WRED drop precedence, use the no wred {yellow | green} [profile-name] command.
Quality of Service (QoS) 1447