where Eval is the number of evaluations performed for each configuration and the rest of
the notation is consistent with equation 12.1. Even in the simple case the evaluation of all
configurations can take tens of hours to complete.
The result of evaluation is a performance profile for every protocol configuration in each
operating environment. This takes the form of a simple report for each combination of
configuration and connection characteristic. Figure 12.5 illustrates such a report for a RAP
configuration operating in a connection with a latency of 300 microseconds and a bit error
occurring for approximately every 8 megabytes of data. The performance of this
configuration occupies the remainder of the report. For the example protocol, 1943 reports
were generated. These were generated by considering the protocol functions introduced in
Table 12.2 with only four QoS characteristics (each assuming three states).
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