H3C S6550X-HI Series Command Reference Manual page 2205

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The drop probability 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 queue table
queue ecn
Use
queue ecn
Use
undo queue ecn
Syntax
queue queue-id ecn
undo queue queue-id ecn
Default
ECN is disabled for a queue.
Views
WRED table view
Predefined user roles
network-admin
Parameters
: Specifies a queue by its ID in the range of 0 to 7.
queue-id
Usage guidelines
When both the receiver and sender support ECN, the device can notify the peer end of the
congestion status by identifying and setting the ECN flag. ECN avoids deteriorating congestion.
Examples
# In WRED table queue-table1, enable ECN for queue 1.
<Sysname> system-view
[Sysname] qos wred queue table queue-table1
[Sysname-wred-table-queue-table1] queue 1 ecn
Related commands
display qos wred table
qos wred queue table
queue weighting-constant
Use
queue weighting-constant
for a queue.
Use
undo queue weighting-constant
to enable ECN for a queue.
to restore the default.
to specify an exponent for average queue length calculation
to restore the default.
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