User's Manual

C HAPTER 4 | Configuring the Switch
Quality of Service
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◆ Queue Shaper – Controls whether queue shaping is enabled for this
queue on this port.
■
Enable – Enables or disables queue shaping. (Default: Disabled)
■
Rate – Controls the rate for the queue shaper. The default value is
500. This value is restricted to 100-1000000 kbps, or 1-3300 Mbps.
■
Unit – Controls the unit of measure for the queue shaper rate as
“kbps” or “Mbps.” (Default: kbps)
■
Excess – Controls whether the queue is allowed to use excess
bandwidth. (Default: Disabled)
◆ Queue Scheduler – When the Scheduler Mode is set to Weighted, you
need to specify a relative weight for each queue. DWRR uses a
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.
■
Weight – A weight assigned to each of the queues (and thereby to
the 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. (Range: 1-100; Default: 17)
■
Percent – The weight as a percentage for this queue.
◆ Port Shaper – Sets the rate at which traffic can egress this queue.
■
Enable – Enables or disables port shaping. (Default: Disabled)
■
Rate – Controls the rate for the port shaper. The default value is
500. This value is restricted to 100-1000000 kbps, or 1-3300 Mbps
■
Unit – Controls the unit of measure for the port shaper rate as
“kbps” or “Mbps.” (Default: kbps)
WEB INTERFACE
To show an overview of the queue mode and weight used by egress ports:
1. Click Configuration, QoS, Port Scheduler.
2. Click on any enter under the Port field to configure the Port Scheduler
and Shaper.