Command Reference Guide

3Com Router 5000 Family and Router 6000 Family wred ● 143
Command Reference
wred
Purpose Use the wred command to configure drop mode as weighted random early detection
(WRED).
Use the
undo wred command to delete the configuration.
This command can be used only after the
queue af 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.
Syntax wred [ dscp | ip-precedence ]
undo wred
Parameters dscp
Uses DSCP value for calculating drop probability for a
packet.
ip-precedence
Uses IP precedence value for calculating drop
probability for a packet.
Default By default, ip-precedence is configured.
When configuration is performed in default-class view, ip-precedence is
configured by default.
Example Configure WRED for a traffic behavior named database and drop probability is
calculated by IP precedence.
[3Com ] traffic behavior database
[3Com -behavior-database] wred
View This command can be used in the following views:
■ Traffic Behavior view
Description The behavior associated with default-class can only use wred ip-precedence.
Related Commands ■ qos policy
■ traffic behavior
■ classifier behavior