[USRP-users] Independent use of ethernet ports on Ettus x310?

Chad Spooner cmspooner at nwra.com
Fri Nov 17 11:34:16 EST 2017


Derek:
Very helpful reply; thanks much.
Chad
On Fri, 2017-11-17 at 12:08 +0000, Derek Kozel wrote:
> Hi Chad,
> 
> To add to what Neel said, no matter the FPGA image or Ethernet type a
> USRP cannot be accessed from two computers at the same time. The
> device is claimed as the first action when a connection is made to it
> by a program.
> 
> Regards,
> Derek
> 
> On Fri, Nov 17, 2017 at 1:08 AM, Neel Pandeya via USRP-users 
> ers at lists.ettus.com> wrote:
> > Hello Chad:
> > 
> > If you are using 1 Gigabit Ethernet, then only one of two SFP ports
> > in the rear of the X300/X310 can be used. If you have 10 Gigabit
> > Ethernet, then the second SFP port can be used. Please see the link
> > below. The SFP ports are configured depending on which FPGA image
> > is being used.
> > 
> > http://files.ettus.com/manual/page_usrp_x3x0.html#x3x0_load_fpga_im
> > gs_fpga_flavours
> > 
> > Regarding your use-case, if you have a second daughterboard in your
> > X300/X310, then you can simultaneously receive in parallel. With
> > two daughterboards, the X300/X310 provides two transmit chains and
> > two receive chains.
> > 
> > What is the configuration of your system?
> > 
> > --Neel Pandeya
> > 
> > 
> > 
> > On 15 November 2017 at 17:34, Chad Spooner via USRP-users 
> > rs at lists.ettus.com> wrote:
> > > All:
> > > 
> > > I'm wondering how to use the second ethernet port on my x310.
> > > I've been going through the
> > > online Ettus SDR help, but can't seem to find the right pages.
> > > 
> > > The short version of my question is: Can I use the two ethernet
> > > ports independently, say
> > > when each of them is connected to a separate computer? If so, how
> > > do I set up the second
> > > port? I'm using computers with 1 GiG Ethernet only.
> > > 
> > > Details/Context: I have a working gnuradio companion flowgraph
> > > that generates a signal indefinitely 
> > > and applies it to (A:0, Tx/Rx). That output port is connected by
> > > a cable to (B:0, RX2).  All indications are 
> > > that this is working well. At irregular intervals, I want to
> > > obtain large numbers of samples from
> > > (B:0, RX2) by calling, say, uhd_rx_cfile or the like, outside of
> > > the flowgraph, which is still
> > > running. I'm prevented from doing that while the flowgraph is
> > > running. Can I do it using the
> > > second 1 GiG port if I set it up properly?
> > > 
> > > Thanks for any advice you can offer.
> > > 
> > > Chad
> > > 
> > > -- 
> > > Chad M. Spooner
> > > NorthWest Research Associates
> > > 301 Webster Street
> > > Monterey, CA 93940
> > > cmspooner at nwra.com
> > > 831 582 4904
> > > cyclostationary.blog
> > > 
> > > _______________________________________________
> > > USRP-users mailing list
> > > USRP-users at lists.ettus.com
> > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.co
> > > m
> > > 
> > 
> > _______________________________________________
> > USRP-users mailing list
> > USRP-users at lists.ettus.com
> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> > 
-- 
Chad M. Spooner
NorthWest Research Associates
301 Webster Street
Monterey, CA 93940
cmspooner at nwra.com
831 582 4904
cyclostationary.blog

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20171117/fdd4c078/attachment-0002.html>


More information about the USRP-users mailing list