Hi all, I try to use a USRP X300 with a 10G Ethernet link at full speed (200MS/s). I followed all the tips from https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks but I still receive "O"s from time to time. I don't have these messages at 100MS/s. I'm surprised to receive these overflow warnings, because this is not what is described in https://files.ettus.com/manual/page_general.html#general_ounotes. In this document, network-based devices are only supposed to drop ("D") packets because there is no back-pressure. So how is it possible to receive "O"s (i.e. the device's internal buffers become full) with this setup? Thanks for your answers. Thomas