Command Reference Guide

3Com Router 5000 Family and Router 6000 Family wred ip-precedence ● 147
Command Reference
wred ip-precedence
Purpose Use the wred ip-precedence command to set precedence lower-limit,
upper-limit and drop probability denominator of WRED.
This command can be used only after the
wred command has been used to enable
WRED drop mode based on IP precedence.
Syntax wred ip-precedence precedence low-limit low-limit high-limit high-limit
[ discard-probability discard-prob ]
undo wred ip-precedence precedence
Parameters precedence
Precedence of IP packet, in the range of 0 to 7.
low-limit
Lower threshold value, in the range of 1 to 1024. It is
10 by default.
high-limit
Upper threshold value, in the range of 1 to 1024. It is
30 by default.
discard-prob
Denominator of drop probability, in the range of 1 to
255. It is 10 by default.
Example Set lower-limit to 20, upper-limit to 40 and discard probability to 40 for the packet
with the precedence 3.
[3Com ] traffic behavior database
[3Com -behavior-database] wred
[3Com -behavior-database] wred ip-precedence 3 low-limit 20 high-limit
40 discard-probability 15
View This command can be used in the following views:
■ Traffic Behavior view
Description The configuration of wred ip-precedence will be deleted when wred
configuration is deleted.
The configuration of drop parameters will be deleted if queue af is deleted.
Related Commandas ■ qos policy
■ traffic behavior
■ classifier behavior