User Manual
Page 89 of 129
QoS Shaper Configuration
The Shaper Configuration page is accessed by selecting Shaper on the Advanced main page. Three shaper algorithms are
supported:
HTB
Low Latency Queue Discipline
PRIOWRR
QoS Shaper Configuration
Note:
Egress TCA is required if shaper is configured for that interface.
Field
Description
Interface
The selections are WAN/LAN interfaces except WLAN, which does not support Shaper feature. This field needs to be selected
before shaper configuration.
Max Rate
This field is applicable for the HTB Queue Discipline and Low Latency Queue Discipline, both are rate-based shaping
algorithms.
HTB Queue Discipline
The hierarchical token bucket queue discipline is a rate-based shaping algorithm. This algorithm rate shapes the traffic of
a class over a specific interface. All CoSx traffic uses a specific rate to which data will be shaped. For example: If CoS1 is
configured to 100Kbps then even if 300Kbps of CoS1 data is being transmitted to the interface only 100Kbps will be sent
out.
Low Latency Queue
Discipline
This is similar to the above algorithm except that CoS1 is not rate limited. So in the example above CoS1 data is not rate
limited to 100Kbps but instead all 300Kbps is transmitted. The side effect is that a misconfigured stream can potentially
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