3Com MSR 50, MSR 30 manual Length, in the range 1 to 16. It defaults to, 1851

	1851
View	Interface view
Parameters	weighting-constantexponent: Exponent used to calculate the average queue
	length, in the range 1 to 16. It defaults to 9.
Description	Use the qos wred weighting-constantcommand to set exponential used to
	calculate the average length of WRED queues.
	Use the undo qos wred weighting-constantcommand to restore the default.
	Before you can configure WRED parameters on an interface, you must apply
	WRED with the qos wred enable command on it.
Related commands:	qos wred enable, display qos wred interface.
Examples	# Set the exponent used to calculate average queue length to 6 on Ethernet1/0.
	<Sysname> system-view
	[Sysname] interface ethernet1/0
	[Sysname-Ethernet1/0] qos wfq queue-length 100 queue-number 512
	[Sysname-Ethernet1/0] qos wred enable
	[Sysname-Ethernet1/0] qos wred weighting-constant 6