Cambium Networks PTP 450 Series, Configuration Manual

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Chapter 1: Configuration Configuring quality of service
Page
1-240
SM Prioritization with CIR
When the SM Prioritization feature is used with CIR, Cambium’s scheduler will first prioritize scheduling
of data channels configured with a CIR, but only within the limits of that SMs Prioritization Group
allocation. In the example configuration shown in
Figure 37 , there are 6 SMs in the Low Prioritization
group. If 3 of those 6 SMs each have a 1Mbps CIR configured, the Cambium scheduler will attempt to
meet this 1Mbps CIR per SM before scheduling the other 3 SMs. But if both prioritization groups are
overloaded, this 3Mbps committed load on these 3 SMs will only be achieved if it can be done with 55%
of the resources or less – per direction.