Ralf,
Thank you for sharing the code, first of all. I just can't understand how different MAC addresses fit the picture. I mean, with normal switch we should have a single MAC for the device and I expected it to be configured for the port0. But instead we configure (different) MACs for the ports 1 and 2 (and port0 MAC is not configurable at all, according to the documentation). I tried to catch it from the GbE SS manual but failed with it.
WBR,
Dmitry