SMC Networks SMC Tiger 10/100 SMC6128PL2 - Manual (Page 578)

Command Line Interface
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• This switch provides eight priority queues for each port. It is configured to use
Weighted Round Robin, which can be viewed with the show queue
bandwidth command. Inbound frames that do not have VLAN tags are
tagged with the input port’s default ingress user priority, and then placed in the
appropriate priority queue at the output port. The default priority for all ingress
ports is zero. Therefore, any inbound frames that do not have priority tags will
be placed in queue 0 of the output port. (Note that if the output port is an
untagged member of the associated VLAN, these frames are stripped of all
VLAN tags prior to transmission.)
Example
The following example shows how to set a default priority on port 3 to 5:
queue bandwidth
This command assigns weighted round-robin (WRR) weights to the four class of
service (CoS) priority queues. Use the no form to restore the default weights.
Note: This switch does not allow the queue service weights to be set. The weights are
fixed as
1, 2, 4, 8, for queues 0 through 3 respectively.
Syntax
queue bandwidth weight1...weight4
no queue bandwidth
weight1...weight4 - The ratio of weights for queues 0-3 determines the
weights used by the WRR scheduler. (Range: 1-31)
Default Setting
Weights 1, 2, 4, 8 are assigned to queues 0-3 respectively.
Command Mode
Global Configuration
Command Usage
WRR controls bandwidth sharing at the egress port by defining scheduling
weights.
Example
This example shows how to assign WRR weights to priority queues 0 - 2:
Related Commands
show queue bandwidth (4-272)
Console(config)#interface ethernet 1/3
Console(config-if)#switchport priority default 5
Console(config)#queue bandwidth 6 9 12
Console(config)#