Command Reference Guide

1220 | Quality of Service (QoS)
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Usage
Information
Use this command to configure minimum and maximum threshold values for user defined
profiles. Additionally, use this command to modify the minimum and maximum threshold
values for the pre-defined WRED profiles. If you delete threshold values of the pre-defined
WRED profiles, the profiles will revert to their original default values.
Table 42-8. Pre-defined WRED Profile Threshold Values
Related
Commands
trust
c e s
Specify dynamic classification (DSCP) or dot1p to trust.
Syntax
trust {diffserv [fallback]| dot1p [fallback]| ipv6-diffserv}
Parameters
Defaults
No default behavior or values
Command Modes
CONFIGURATION (conf-policy-map-in)
Command
History
Usage
Information
When trust is configured, matched bytes/packets counters are not incremented in the show
qos statistics
command.
Pre-defined WRED Profile Name Minimum Threshold Maximum Threshold
wred_drop 0 0
wred_ge_y 1024 2048
wred_ge_g 2048 4096
wred_teng_y 4096 8192
wred_teng_g 8192 16384
wred-profile Create a WRED profile.
diffserv
Enter the keyword diffserv to specify trust of DSCP markings.
dot1p
Enter the keyword dot1p to specify trust dot1p configuration.
fallback
Enter this keyword to
classify packets according to their DSCP value as a
secondary option in case no match occurs against the configured class maps.
ipv6-diffserv
On E-Series only, enter the keyword ipv6-diffserv to specify trust configuration
of IPv6 DSCP.
Version 8.3.7.0 Introduced on S4810
Version 8.3.1.0 fallback available on the E-Series.
Version 8.2.1.0 dot1p available on the C-Series and S-Series.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
Version 7.4.1.0 Expanded to add support for dot1p and IPv6 DSCP
pre-Version
6.1.1.1
Introduced on E-Series