Deployment Guide

Version Description
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 6. Default Mapping
DSCP/CP hex
Range (XXX)
DSCP
Definition
Traditional IP
Precedence
S6000
Internal
Queue ID
S-Series
Internal
Queue ID
DSCP/CP
Decimal
111XXX Network
Control
7 3 48–63
110XXX Internetwork
Control
6 3 48–63
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 5 2 32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 4 2 32–47
011XXX AF3 Flash 3 1 16–31
010XXX AF2 Immediate 2 1 16–31
001XXX AF1 Priority 1 0 0–15
000XXX BE (Best
Effort)
Best Effort 0 0 0–15
wred
Designate the WRED profile to yellow or green traffic.
S6000–ON
Syntax
wred {yellow | green} profile-name
To remove the WRED drop precedence, use the no wred {yellow | green} [profile-name] command.
Parameters
yellow | green Enter the keyword yellow for yellow traffic. A DSCP value of xxx110 and xxx100,
xxx101 maps to yellow.
Enter the keyword green for green traffic. A DSCP value of xxx0xx are green and
DSCP 111111 are red packets.
profile-name
Enter your WRED profile name in character format (32 character maximum). Or
use one of the five pre-defined WRED profile names.
1268 Quality of Service (QoS)