On 07/15/2014 01:57 PM, Ward, Marcus D. wrote:
On the machine that has the USRP connected  (presumable this is a N2xx or 
USRP2?), what does:
ping 192.168.10.2

return?

Ping 192.168.10.2 is returning data

what does uhd_usrp_probe --args "addr=192.168.10.2"

Return?

  This returns an error message:
RuntimeError: LookupError: KeyError: No devices found for -------->
Device Address:
        Addr: (192.168.10.2)
And the firmware in the device matches the UHD you have?

Assuming that there's nothing *else* on the network connection between the host computer and the USRP device, that's the only thing I can think of that might cause it to be pingable, but UHD can't communicate with it, unless you have firewall rules preventing communications at the
  UHD layer...


-----Original Message-----
From: discuss-gnuradio-bounces+marcus.ward=jhuapl....@gnu.org 
[mailto:discuss-gnuradio-bounces+marcus.ward=jhuapl....@gnu.org] On Behalf Of 
Marcus D. Leech
Sent: Tuesday, July 15, 2014 1:35 PM
To: discuss-gnuradio@gnu.org
Subject: Re: [Discuss-gnuradio] Why am I dropping data over the UDP network?

On 07/15/2014 01:21 PM, Ward, Marcus D. wrote:
Ok so now I went to try out my architecture this time with a TCP source and 
sink. I have pictures included where the sending side is (TCPrecievestation) 
and the receiving side is (TCPreceivedisplaystation).

On the (TCPreceievestation), the last three lines in the bottom window is as 
follows:
RuntimeError: LookupError: KeyError: No devices found for -------->
Device Address:
        Addr: (My USRP's IP address)


On the (TCPreceievedisplaystation), all I am getting is this:
using volk machine: avx_64_mmx_orc

To add, I have scopes for both the sending and receiving end, but as I run 
them, the plots do not show.

Is there something that I could be missing since I am dealing with TCP and not 
UDP?

One thing I noticed immediately is that you have the sample rate set to 32k, 
which is not a valid sample rate for ANY USRP hardware.

On the machine that has the USRP connected  (presumable this is a N2xx or 
USRP2?), what does:

ping 192.168.10.2

return?

what does uhd_usrp_probe --args "addr=192.168.10.2"

Return?




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