Wred Dscp - H3C MSR 20-20 Command Reference Manual

1830 C 115: CBQ C
HAPTER
Parameters
Description
Related commands:
Examples

wred dscp

Syntax
View
Parameters
Description
C
ONFIGURATION OMMANDS
dscp: Uses DSCP value for calculating drop probability for a packet.
ip-precedence: Uses IP precedence value for calculating drop probability for a
packet.
Use the command to configure drop mode as Weighted Random Early
wred
Detection (WRED).
Use the undo wred
This command can be used only after the queue af or queue wfq command has
been configured. The wred command and queue-length command can not be
used simultaneously. Other configurations under the random drop will be deleted
when this command is deleted. When a policy is applied on an interface, the
previous WRED configuration on interface level will become ineffective.
qos policy, traffic behavior, classifier behavior.
# Configure to adopt WRED and count discard rate with IP precedence.
<Sysname> system-view
[Sysname] traffic behavior database
[Sysname-behavior-database] queue wfq
[Sysname-behavior-database] wred
wred dscp dscp-value low-limit low-limit high-limit high-limit [ discard-probability
discard-prob ]
undo wred dscp dscp-value
Traffic behavior view
dscp-value: DSCP value, in the range 0 to 63, which can also be any of the
keywords listed in Table 479.
low-limit low-limit: Specifies the lower threshold, in the range 1 to 1024 (in terms
of the number of packets). The system default is 10.
high-limit high-limit: Specifies the upper threshold, in the range 1 to 1024 (in
terms of the number of packets). The system default is 30.
discard-probability discard-prob: Specifies the denominator for drop probability,
in the range 1 to 255. The system default is 10.
Use the wred dscp
probability denominator of WRED.
Use the
undo wred dscp
command to remove the configuration.
command to set DSCP lower-limit, upper-limit and drop
command to delete the configuration.