Command Line Interface
4-248
4
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.
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: 1-15)
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.
• Each queue’s weight must be less than or equal to the weight of the next
higher priority queue (that is, Q0
≤ Q1 ≤ Q2 ≤ Q3).
Example
This example shows how to assign WRR weights to priority queues 0 - 2:
Related Commands
show queue bandwidth (4-250)
queue cos-map
This command assigns class of service (CoS) values to the priority queues (i.e.,
hardware output queues 0 - 3). Use the no form set the CoS map to the default
values.
Console(config)#interface ethernet 1/3
Console(config-if)#switchport priority default 5
Console(config)#queue bandwidth 6 9 12
Console(config)#
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