3Com 3C13636 Configuration Manual page 1332

3Com Router 3000 Ethernet Family
Configuration Guide
Restore the default setting
dscp indicates that the dscp value is used to calculate drop proportion of a packet.
Ip-precedence indicates that the IP precedence value is used to calculate discard
proportion of a packet, which is the default setting.
This command can be used only after the queue af command and queue wfq
command have been configured. The wred and queue-length are mutually exclusive.
Other configurations under the random drop will be deleted when this command is
deleted. When a QoS policy included WRED is applied on an interface, the original
WRED configuration on interface will be ineffective.
The default-class can only be associated with the traffic behavior configured the WRED
drop based on the IP precedence.
VII. Configuring exponential of average queue length calculated by WRED
Perform the following configurations in traffic behavior view.
Table 3-40 Configure exponential of average queue length calculated by WRED
Configure exponential of average
queue length calculated by WRED
Delete the configuration
This command can be used only after the queue af command has been configured and
the wred command has been used to enable WRED.
VIII. Configuring DSCP lower-limit, upper-limit and discard probability of
WRED
Perform the following configurations in traffic behavior view.
Table 3-41 Configure DSCP lower-limit, upper-limit and discard probability of WRED
Configure
upper-limit
probability of WRED
Delete the configuration
Operation
Operation
Operation
DSCP lower-limit,
and discard
3Com Corporation
Chapter 3 Congestion Management
undo wred
wred weighting-constant exponent
undo wred weighting-constant
Command
wred dscp dscp-value
high-limit high-limit
discard-prob ]
undo wred dscp dscp-value
3-26
Command
Command
low-limit low-limit
[ discard-probability