For uplink traffic (from BS to SS), some form of
policing needs to be done by the SS to ensure that the uplink traffic pattern, on average,
does not exceed this parameter. For downlink traffic, the policing is expected
to be done at the ingress point of the network.
?– Maximum Traffic Burst The maximum burst of data traffic, given in bytes,
specifies the maximum burst of ingress traffic that the system can accommodate.
This parameter, which is mostly dictated by the characteristic of the ingress port,
is meant to ensure sufficient system resources such as buffer space, CPU cycles,
and so on, to handle the burst.
?– Minimum Reserved Traffic Rate This is one of the key QoS parameters that
specify, in bits per second, the minimum data rate reserved for the service that
is statistically guaranteed over time. Systems are designed such that no service
474 Chapter 15
is denied its minimum reserved traffic rate because of another service getting
more than its minimum reserved traffic rate. There are two key points about this
parameter that should be noted. First, resource reservation does not necessarily
mean that the resources are not to be used for any other purpose.
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