HP 6125XLG R2306-HP 6125XLG Blade Switch ACL and QoS Command Reference - Page 94

queue ecn

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high-limit high-limit: Specifies the upper limit for the average queue length. The high-limit argument is in the range of 0 to 38000 and must be greater than the low-limit argument. discard-probability discard-prob: Specifies the numerator for drop probability calculation in percentage, in the range of 0 to 100. Usage guidelines When the average queue size is smaller than the lower threshold, no packet is dropped. When the average queue size is between the lower threshold and the upper threshold, the packets are dropped based on the user-configured drop probability. When the average queue size exceeds the upper threshold, subsequent packets are dropped. Examples # In global WRED table queue-table1, configure the following drop-related parameters for packets in queue 1: • The drop level is 1. • The lower limit for the average queue length is 10. • The upper limit for the average queue length is 20. • The numerator for drop probability calculation is 30. system-view [Sysname] qos wred queue table queue-table1 [Sysname-wred-table-queue-table1] queue 1 drop-level 1 low-limit 10 high-limit 20 discard-probability 30 Related commands • display qos wred table • qos wred table queue ecn Use queue ecn to enable ECN for a specified queue. Use undo queue ecn to restore the default. Syntax queue queue-value ecn undo queue queue-value ecn Default ECN is not enabled on any queue. Views WRED table view Predefined user roles network-admin Parameters queue-value: Queue number in the range of 0 to 7. 89

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89
high-limit
high-limit
: Specifies the upper limit for the average queue length. The
high-limit
argument is in
the range of 0 to 38000 and must be greater than the
low-limit
argument.
discard-probability
discard-prob
: Specifies the numerator for drop probability calculation in percentage,
in the range of 0 to 100.
Usage guidelines
When the average queue size is smaller than the lower threshold, no packet is dropped. When the
average queue size is between the lower threshold and the upper threshold, the packets are dropped
based on the user-configured drop probability. When the average queue size exceeds the upper
threshold, subsequent packets are dropped.
Examples
# In global WRED table
queue-table1
, configure the following drop-related parameters for packets in
queue 1:
•
The drop level is 1.
•
The lower limit for the average queue length is 10.
•
The upper limit for the average queue length is 20.
•
The numerator for drop probability calculation is 30.
<Sysname> system-view
[Sysname] qos wred queue table queue-table1
[Sysname-wred-table-queue-table1] queue 1 drop-level 1 low-limit 10 high-limit 20
discard-probability 30
Related commands
•
display qos wred table
•
qos wred table
queue ecn
Use
queue ecn
to enable ECN for a specified queue.
Use
undo queue ecn
to restore the default.
Syntax
queue
queue-value
ecn
undo queue
queue-value
ecn
Default
ECN is not enabled on any queue.
Views
WRED table view
Predefined user roles
network-admin
Parameters
queue-value
: Queue number in the range of 0 to 7.