Issue 10006175, Version 1.1
There are a couple of typographical errors in December 2009 version 1.1 of AN588, in the Regenerating and Recompiling the Reference Design section as listed below:
Step 5b incorrectly lists saving eth_10g_hw_ref_design.v. The saved file should be eth_10g_hw_ref_design.v_bak.
Step 7 lists eth_10ginst.v_bak twice. The third file should be eth_10g_hw_ref_design.v_bak.
In addition, the design cannot be regenerated with the simulation option on in a Linux environment in the Quartus® II software version 9.1 SP2.
This issue will be fixed in a future version of the Quartus II software release.