Qos Configuration; Qos Basic - Edimax ECS1100 Series Web Management Manual

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QoS Basic

QoS Configuration

Quality of Service (QoS) allows you to specify which data packets have greater
precedence when traffic is buffered in the switch due to congestion. This switch
supports QoS with eight priority queues for each port. Data packets in a port's
high-priority queue will be transmitted before those in the lower-priority queues.
You can set the default priority for each interface, and configure the mapping of
frame priority tags to the switch's priority queues.
This chapter describes the following topics:
QoS Basic — Configures the priority queue mode and queue weight for ports.
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QoS Advanced — Configures the QoS Mode for incoming packets and maps
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QoS priorities to port priority queues.
Use the QoS > QoS Basic page to set the queue mode for the egress queues on
any port. The switch can be set to service the queues based on a strict rule that
requires all traffic in a higher priority queue to be processed before the lower
priority queues are serviced, or Weighted Round-Robin (WRR) queuing which
specifies a scheduling weight for each queue.
Usage Guidelines
Strict priority requires all traffic in a higher priority queue to be processed
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before lower priority queues are serviced.
WRR queuing specifies a relative weight for each queue. WRR uses a
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predefined relative weight for each queue that determines the percentage of
service time the switch services each queue before moving on to the next
queue. This prevents the head-of-line blocking that can occur with strict priority
queuing.
A weight can be assigned to each of the weighted queues (and thereby to the
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corresponding traffic priorities). This weight sets the frequency at which each
queue is polled for service, and subsequently affects the response time for
software applications assigned a specific priority value.
The specified queue mode applies to all interfaces.
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