[cillian64]

Do you expect the same problems with GPON, which also has a shared medium? At least with fibre you don’t get reflection problems from other people’s dodgy terminations, but you are relying on them obeying the TDMA for upstream.

[rsaxvc]

Rogue ONTs either fire out of time slice and break other packets or just stick on and jam the OLT.

The OLT can often pick out which ONT is doing it.