On 13/Mar/20 19:54, Chris Adams wrote: > I'm using 1G optics on MX204 with 18.1. Not sure why you need to go to > 19... There are some that worked on 18, and others only worked on 19. Could be where we got them from. Didn't have the time to work it out - 1Gbps optics are the exception on our end, not the rule. Mark.