3com MSR 20-20 참조 매뉴얼

# Configure WFQ for default-class and the queue number is 16.

<Sysname> system-view

[Sysname] traffic behavior test

[Sysname-behavior-test] queue wfq 16

[Sysname] qos policy user1

[Sysname-qospolicy-user1] classifier default-class behavior test 

queue-length queue-length

undo queue-length queue-length

Traffic behavior view

queue-length: The maximum threshold value of the queue, in the range 1 to 512. 
The queue length is 64.

Use the queue-length command to configure maximum queue length, and the 
drop mode is tail drop.

Use the undo queue-length command to delete configuration.

By default, tail drop is configured.

This command can be used only after the queue af or queue wfq command has 
been configured.

The queue-length, which has been configured, will be deleted when the undo 
queue af or undo queue wfq command is executed.

The queue-length, which has been configured, will be deleted when the random 
drop mode is configured via the wred command, and vise versa.

qos policy, traffic behavior, classifier behavior.

# Configure tail drop and set the maximum queue length to 16.

<Sysname> system-view

[Sysname] traffic behavior database

[Sysname-behavior-database] queue af bandwidth 200

[Sysname-behavior-database] queue-length 16 

wred [ dscp | ip-precedence ]

Traffic behavior view