R3303-HP HSR6800 Routers ACL and QoS Command Reference

110
Default command level
2: System level
Parameters
precedence: IP precedence in the range of 0 to 7.
low limit low-limit: Specifies the lower WRED limit in number of packets. The value range for the low-limit
argument is 1 to 1024, and the default is 10.
high-limit high-limit: Specifies the upper WRED limit in number of packets. The value range for the
high-limit argument is 1 to 1024, and the default is 30.
discard-probability discard-prob: Specifies the denominator for the drop probability. The value range for
the discard-prob argument is 1 to 255, and the default is 10.
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