Hi Bob, Question 1: With the x4 bitstream, the X410 puts a separate 10 GbE interface on each lane of its QSFP28 port 0 (the QSFP port has four lanes). There are breakout cables that go from one QSFP to four SFPs if you have cards with SFP ports, or, if your card supports four 10 GbE ports on a single QSFP plug then you can use a single QSFP cable like you described. But not all cards support this. Check your card's documentation.
Question 2: This is configurable. You can use the addr, second_addr, third_addr, and fourth_addr device arguments to indicate which IP ports to use for streaming. UHD automatically distributes the streams over the ports you indicate. Thanks, Wade On Wed, Jun 15, 2022 at 10:19 AM Tillson, Bob (US) via USRP-users < usrp-users@lists.ettus.com> wrote: > So I am on the x4_200 image and am wondering what the “correct” way to > setup the transport is. > > > > I currently have a single qsfp28 connection on the x410 to a single 100 > GbE port on a mellanox card. > > > > Question #1: > > Looking at the description of the fpga image it describes the x4_200 as “4 > x 10GbE”, so should I really be configured as single qsfp28 connection on > the x410 to a quad 10 GbE on host with a breakout cable? > > > > I am seeing some wonkiness in my app, which was pretty stable on the N310 > and wondering if it could be due to my transport setup. > > I am still investigating the app, but it made me think about how the data > is delivered from device to host. > > > > Question #2: > > With the x4_200 fpga image, is the traffic for each RF port “routed” to a > single 10GbE interface? 4 RF ports, 4 10GbE connections? > > > > Any insights would be greatly appreciated J > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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