The speed of both the example design and test bench can be set to the desired operational speed by editing the following settings, recompiling the test bench, and then running the simulation again. The changes also need to be implemented in the example design.
1 Gbps Operation
set speed_is_10_100_chx to logic 0
100 Mbps Operation
set speed_is_10_100_chx to logic 1
set speed_is_100_chx to logic 1
10 Mbps Operation
set speed_is_10_100_chx to logic 1
set speed_is_100_chx to logic 0