Qos Wred Weighting-Constant - HPE FlexNetwork HSR6800 series Command Reference Manual

Parameters
ip-precedence precedence: Specifies an IP precedence value in the range of 0 to 7.
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.
Usage guidelines
Before configuring this command, enable IP precedence-based WRED on the interface with the qos
wred enable command.
The upper and lower limits restrict the average queue length.
Examples
# Configure the following parameters for packets with IP precedence value 3 on GigabitEthernet
2/1/1: lower limit 20, upper limit 40, and drop probability denominator 15.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] qos wfq queue-length 100 queue-number 512
[Sysname-GigabitEthernet2/1/1] qos wred ip-precedence enable
[Sysname-GigabitEthernet2/1/1] qos wred ip-precedence 3 low-limit 20 high-limit 40
discard-probability 15
Related commands
display qos wred interface
qos wred enable

qos wred weighting-constant

Use qos wred weighting-constant to set the exponent for WRED to calculate the average queue
size.
Use undo qos wred weighting-constant to restore the default.
Syntax
qos wred weighting-constant exponent
undo qos wred weighting-constant
Default
The exponent for WRED to calculate the average queue size is 9.
Views
Interface view
Predefined user roles
network-admin
Parameters
exponent: Specifies the exponent for average queue length calculation, in the range of 1 to 16.
Usage guidelines
Before configuring this command, enable WRED on the interface with the qos wred enable
command.
120