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• This switch provides four priority queues for each port. It is
configured to use Weighted Round Robin, which can be viewed
with the 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
Use this command to assign Weighted Round-Robin (WRR)
weights to the four class of service (CoS) priority queues. Use the
no form to restore the default weights.
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 - 255)
Default Setting
Weights 16, 64, 128 and 240 are assigned to queue 0, 1, 2 and
3 respectively.
Console(config)#interface ethernet 1/3
Console(config-if)#switchport priority default 5
b_mgmt.book Page 162 Tuesday, July 8, 2003 5:24 PM
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