Qos Wred Dscp; Qos Wred Ip-Precedence - HP HSR6800 Command Reference Manual

display qos wred interface
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qos wred dscp

Use qos wred dscp to configure the lower limit, upper limit, and drop probability for a DSCP value.
Use undo qos wred dscp to restore the default.
Syntax
qos wred dscp dscp-value low-limit low-limit high-limit high-limit discard-probability discard-prob
undo qos wred dscp dscp-value
Views
Interface view, PVC view
Default command level
2: System level
Parameters
dscp-value: DSCP value in the range of 0 to 63. This argument can also be represented using one of the
keywords listed in
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 this configuration, enable DSCP-based WRED on the interface/PVC with the qos wred dscp
enable command first. The upper and lower limits restrict the average queue length.
Examples
# Configure the following parameters for packets with DSCP value 63 on GigabitEthernet 1/0/1: lower
limit 20, upper limit 40, and drop probability 15.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] qos wfq queue-length 100 queue-number 512
[Sysname-GigabitEthernet1/0/1] qos wred dscp enable
[Sysname-GigabitEthernet1/0/1] qos wred dscp 63 low-limit 20 high-limit 40
discard-probability 15
Related commands
• qos wred enable
display qos wred interface
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qos wred ip-precedence

Use qos wred ip-precedence to configure the lower limit, upper limit, and drop probability for an IP
precedence value.
Table 17:
128