Administrator Guide

Version Description
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 congure trust, matched bytes/packets counters are not incremented in the show qos
statistics command.
Dynamic mapping honors packets marked according to the standard denitions of DSCP. The following lists the
default mapping.
Table 4. Default Mapping
DSCP/CP hex
Range (XXX)
DSCP
Denition
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 Eort) Best Eort 0 0 0–15
wred
Designate the WRED prole to yellow or green trac.
S3048–ON
Syntax
wred {yellow | green} profile-name
To remove the WRED drop precedence, use the no wred {yellow | green} [prole-name] command.
Parameters
yellow | green Enter the keyword yellow for yellow trac. A DSCP value of xxx110 and xxx100, xxx101
maps to yellow.
Enter the keyword green for green trac. A DSCP value of xxx0xx are green and DSCP
111111 are red packets.
Quality of Service (QoS) 1305