Reference Guide

Quality of Service (QoS) | 1221
The trust diffserv feature is not supported on E-Series ExaScale when an IPv6 microcode is
enabled.
Dynamic mapping honors packets marked according to the standard definitions of DSCP. The
default mapping table is detailed in the following table.
Table 42-9. Standard Default DSCP Mapping Table
wred
e
Designate the WRED profile to yellow or green traffic.
Syntax
wred {yellow | green} profile-name
To remove the WRED drop precedence, use the no wred {yellow | green} [profile-name]
command.
Parameters
Defaults
No default behavior or values
Command Modes
CONFIGURATION (conf-qos-policy-out)
DSCP/CP
hex range
(XXX)
DSCP Definition Traditional IP
Precedence
E-Series
Internal
Queue ID
C-Series and
S-Series
Internal Queue
ID
DSCP/CP
decimal
111XXX Network Control 7 3
48–63
110XXX Internetwork Control 6 3
101XXX EF (Expedited
Forwarding)
CRITIC/ECP 5 2
32–47
100XXX AF4 (Assured
Forwarding)
Flash Override 4 2
011XXX AF3 Flash 3 1
16–31
010XXX AF2 Immediate 2 1
001XXX AF1 Priority 1 0
0–15
000XXX BE (Best Effort) Best Effort 0 0
yellow | green
Enter the keyword yellow for yellow traffic. DSCP value of xxx110
and xxx100 maps to yellow.
Enter the keyword green for green traffic. DSCP value of xxx010
maps to green.
profile-name
Enter your WRED profile name in character format (16 character
maximum). Or use one of the 5 pre-defined WRED profile names.
Pre-defined Profiles:
wred_drop, wred-ge_y, wred_ge_g, wred_teng_y, wred_teng_