R2511-HP MSR Router Series ACL and QoS Command Reference(V5)

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low limit low-limit: Specifies the lower WRED limit value in the range of 1 to 1024.
high-limit high-limit: Specifies the upper WRED limit value in the range of 1 to 1024.
discard-probability discard-prob: Specifies the drop probability denominator in the range of 1 to 255.
Usage guidelines
Before configuring this command, make sure the IP precedence-based WRED drop is enabled using the
wred command.
The wred ip-precedence command configuration is removed when the wred command configuration is
removed.
The drop-related parameters are removed if the queue af command configuration or the queue wfq
command configuration is removed.
Examples
# Configure the following parameters for packets with IP precedence 3: lower limit 20, upper limit 40,
and drop probability 15.
<Sysname> system-view
[Sysname] traffic behavior database
[Sysname-behavior-database] queue wfq
[Sysname-behavior-database] wred ip-precedence
[Sysname-behavior-database] wred ip-precedence 3 low-limit 20 high-limit 40
discard-probability 15
Related commands
• qos policy
• traffic behavior
• classifier behavior
wred weighting-constant
Use wred weighting-constant to configure the WRED exponent for calculating the average queue length.
Use undo wred weighting-constant to delete the configuration.
Syntax
wred weighting-constant exponent
undo wred weighting-constant
Views
Traffic behavior view
Default command level
2: System level
Parameters
exponent: Exponent in the range of 1 to 16. This argument is 9 by default.
Usage guidelines
Before configuring this command, make sure that the queue af command or the queue wfq command is
configured and WRED drop is enabled using the wred command.