Tak to vypadá že najednou jedou i 100Mbit SFP moduly:
Pokud máte někdo možnost tak to otestujte
I don't know why but I did another test after upgrading two RB2011UAS to 6.3 using two 100FX SFPs (Digitus DN-81103 and DN-81104, LC, single fiber, 1310/1550nm) and crossconnected them.
I had to disable auto-negotiation and manually set the port-speed to 100Mbps.
I configured a test-network on both interfaces using IPs 192.168.66.1 and .2.
Running the integrated bandwidth test I get about >60Mbps bi-directional over tcp with standard settings (CPU is probably the bottleneck).