I'm just excited that I got it to work. I extracted the certificates from my BGP-210 and now my Mikrotik RB5009 is doing the 802.1x authentication directly with AT&T's OLT. I had to set the ethertype ...

10GBASE-Lr 1310-nm SFP+ (LC) for up to 10 km over SMF 10GBASE-Sr 850-nm SFP+ (LC) for up to 300 m over MMF (oM3) 10GBASE-LrM 1310-nm SFP+ (LC) for up to 220 m over MMF (oM2) 1000BASE-LX 1310-nm SFP ...