By simpler words, I want to filter BPDUs, I don't want to block the port if BPDUs come in. Like Cisco's BPDU filter. This page describes what I want to do in Juniper:
set ethernet-switching-options bpdu-block interface ge-0/0/0.0 drop
But that looks like non ELS config, the 'drop' keyword is not available in the comprarble command on ELS. That being said, if you are running RSTP on the ex4300....can the switch even recognize/block PVST BPDUs?