D-Link TM DES-6500 Config schedulingmechanism, Config scheduling mechanism strict weightfair

xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch CLI Manual

Example usage:

To display the current 802.1p default priority configuration on the Switch:

DES-6500:4# show 802.1p default_priority

Command: show 802.1p default_priority

Port	Priority
-------	-----------
1:1	0
1:2	0
1:3	0
1:4	0
1:5	0
1:6	0
1:7	0
1:8	0
1:9	0
1:10	0
1:11	0
1:12	0
1:13	0
1:14	0
1:15	0
1:16	0
1:17	0
1:18	0
1:19	0
1:20	0
1:21	0
1:22	0
1:23	0
1:24	0

DES-6500:4#

config scheduling_mechanism

Purpose	Used to configure the scheduling mechanism for the QoS function
Syntax	config scheduling mechanism [strict weight_fair]
Description	The config scheduling_mechanism command allows the user to
	select between a Weight Fair (WRR) and a Strict mechanism for
	emptying the priority classes of service of the QoS function. The
	Switch contains seven hardware priority classes of service.
	Incoming packets must be mapped to one of these seven
	hardware priority classes of service. This command is used to
	specify the rotation by which these seven hardware priority classes
	of service are emptied.
	The Switch’s default is to empty the seven priority classes of
	service in order − from the highest priority class of service (queue
	6) to the lowest priority class of service (queue 0). Each queue will
	transmit all of the packets in its buffer before allowing the next
	lower priority class of service to transmit its packets. Lower classes
	of service will be pre-empted from emptying its queue if a packet is
	received on a higher class of service. The packet that was
	received on the higher class of service will transmit its packet
	before allowing the lower class to resume clearing its queue.

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