So, I got myself a Switch with SFP (ebay) and it works as advertised. Here are some Screenshots:
Also here is the Dump: https://cloud.s-brand.de/s/Q4a3LmKc449YXeH/download
Values actually look pretty similar to the ones my External Draytek Router/Modem uses, the Actual Downstream Rate shown in the overview at 79593 on the Allnet is actually quite a bit Lower than on the Draytek (98338)