Wred Dscp - HPE FlexNetwork HSR6800 series Command Reference Manual

Related commands
queue af
queue wfq

wred dscp

Use wred dscp to set the lower limit, upper limit, and drop probability denominator for packets with a
DSCP value.
Use undo wred dscp to delete the settings for a DSCP value.
Syntax
wred dscp dscp-value low-limit low-limit high-limit high-limit [ discard-probability discard-prob ]
undo wred dscp dscp-value
Default
The lower limit is 10, and the upper limit is 30.
Views
Traffic behavior view
Predefined user roles
network-admin
Parameters
dscp-value: Specifies a DSCP value in the range of 0 to 63. This argument can also be represented
by using one of the keywords listed in
low limit low-limit: Specifies the lower WRED limit (in packets) in the range of 1 to 1024.
high-limit high-limit: Specifies the upper WRED limit (in packets) in the range of 1 to 1024.
discard-probability discard-prob: Specifies the denominator for drop probability calculation, in the
range of 1 to 255. The default is 10.
Usage guidelines
Before configuring this command, make sure DSCP-based WRED is enabled by using the wred
command.
The wred dscp command configuration is deleted when the undo wred command is executed.
Removing the queue af or queue wfq command configuration also removes the WRED-related
parameters.
Examples
# Set the following parameters for packets with DSCP value 3: lower limit 20, upper limit 40, and drop
probability denominator 15.
<Sysname> system-view
[Sysname] traffic behavior database
[Sysname-behavior-database] queue wfq
[Sysname-behavior-database] wred dscp
[Sysname-behavior-database] wred dscp 3 low-limit 20 high-limit 40 discard-probability
15
Related commands
queue af
queue wfq
Table 18.
113