Users Guide

Version Description
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
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.
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.
S4820T
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.
1254
Quality of Service (QoS)