Many times when contacting Juniper EX Series Ethernet Switches support, it seems that it is easiest for support to recommend a straight replacement (RMA) instead of taking time to walk through a solution on the faulty system. We find we get better help from a third-party consulting firm that has Juniper certified technicians or professionals on staff. They take the time to explain processes and workflow, which Juniper EX Series Ethernet Switches support seems to shy away from.