132 CHAPTER 9: QOS COMMANDS
User Guidelines
This command can be used to distribute traffic into different queues,
where each queue is configured with different Weighted Round Robin
(WRR) and Weighted Random Early Detection (WRED) parameters.
It is recommended to specifically map a single VPT to a queue, rather
than mapping multiple VPTs to a single queue. Use the priority-queue
out Interface Configuration (Ethernet, Port-channel) mode command to
enable expedite queues.
Example
The following example maps CoS 7 to queue 2.
wrr-queue
bandwidth
The wrr-queue-bandwith Interface Configuration (Ethernet,
port-channel) mode command assigns weights to each Weighted Round
Robin (WRR) queue. The weight ratio determines the frequency by which
the packet scheduler dequeues packets from each queue. To restore the
default configuration, use the no form of this command.
Syntax
wrr-queue bandwidth weight1 weight2 ... weight_n
no wrr-queue bandwidth
Parameters
■ weight1 weight2 ... weight_n — Sets the ratio of the bandwidth
assigned by the WRR packet scheduler for the packet queues.
Separate each value by a space. (Range: 6-255)
Default Configuration
The default WRR weight ratio is one-eighth of the sum of all queue
weights (each weight is set to 6).
Command Mode
Interface Configuration (Ethernet, port-channel) mode
Console(config)# wrr-queue cos-map 2 7
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