Switchport Priority Default - Digisol DG-FS4526 Management Manual

4
Command Line Interface
• hybrid - Services the highest priority queue (3) according to strict priority
queuing, after which the 3 lower priority queues (0, 1, 2) are processed
according to their WRR weightings.
Default Setting
Weighted Round Robin
Command Mode
Global Configuration
Command Usage
You can set the switch to service the queues based on a strict rule that
requires all traffic in a higher priority queue to be processed before lower
priority queues are serviced, or use Weighted Round-Robin (WRR) queuing
that specifies a relative weight of each queue, or you can choose a hybrid of
these two methods. WRR uses a relative weight for each queue which
determines the amount of packets the switch transmits every time it services
each queue before moving on to the next queue. Thus, a queue weighted 8
will be allowed to transmit up to 8 packets, after which the next lower priority
queue will be serviced according to it's weighting. This prevents the
head-of-line blocking that can occur with strict priority queuing. When
configured for hybrid priority queuing mode, the switch will always employ
strict priority queuing for the highest priority queue (queue 3), before
processing queues 2 through 0 according to their WRR weights.
Example
The following example sets the queue mode to strict priority service mode:
Console(config)#queue mode strict
Console(config)#

switchport priority default

This command sets a priority for incoming untagged frames. Use the no form to
restore the default value.
Syntax
switchport priority default default-priority-id
no switchport priority default
default-priority-id - The priority number for untagged ingress traffic.
The priority is a number from 0 to 7. Seven is the highest priority.
Default Setting
The priority is not set, and the default value for untagged frames received on
the interface is zero.
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