So to preface, I'm not a network engineer but am somehow in charge of getting our juniper QFX5200-48y configured. The goal is to get our FS brand SPF28's and QSFP28's to talk to each other on the juniper switch, so far have been able to configure the regular SFP28 ports to use 25g speeds but no luck in getting the 100g to breakout into 4x25g. QSFP28 to QSFP28 works just fine. Have tried several methods now with no luck and am at my wit's end. Googling, I was able to get one of the 4 channels (et-0/0/48:0) to talk to a singular SFP28 but oddly not the other 3 channels. I would be supremely grateful to anyone who could shed some light on this topic or at least point me in the right direction. Much appreciated!