On 10/23/2019 11:00 PM, Karthik Vasudeva wrote:
I tried uhd_usrp_probe again but still the same problem. Please find
the below error message
kvasude2@veneno:~$ uhd_usrp_probe --args addr=192.168.10.2
[INFO] [UHD] linux; GNU C++ version 7.4.0; Boost_106501;
UHD_3.14.1.HEAD-0-g0347a6d8
Error: LookupError: KeyError: No devices found for ----->
Device Address:
addr: 192.168.10.2
https://kb.ettus.com/USRP_N300/N310/N320/N321_Getting_Started_Guide#Connecting_the_Device
Also, find the below message from the embedded system showing the IP
of the SFP0 port for the reference.
root@ni-n3xx-3198219:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 <http://127.0.0.1/8> scope host lo
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
qlen 1000
link/ether 00:80:2f:26:50:f8 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.102/24 <http://192.168.1.102/24> brd 192.168.1.255
scope global dynamic eth0
valid_lft 86266sec preferred_lft 86266sec
3: *sfp0*: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8000 qdisc pfifo_fast
qlen 1000
link/ether 00:80:2f:26:50:f9 brd ff:ff:ff:ff:ff:ff
*inet 192.168.10.2/24 <http://192.168.10.2/24>* brd 192.168.10.255
scope global sfp0
valid_lft forever preferred_lft forever
4: sfp1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 8000 qdisc pfifo_fast
qlen 1000
link/ether 00:80:2f:26:50:fa brd ff:ff:ff:ff:ff:ff
Karthik
So, something you need to understand about the N310 device is that it
has an RJ45 port that is used both for "management and control"
traffic from UHD, and is also an SSH destination, etc, etc.
The SFP ports are strictly for streaming, so you need to use
"mgmt_addr=<the-addr-of-that-rj45>,addr=192.168.10.2" in the device address,
and you need a connection for that RJ45 as well. HOWEVER, if you're
streaming at lower rates (those that can be supported over the
RJ45), you can simply use that RJ45 connection, and ignore the SFP
connections.
More here:
https://kb.ettus.com/USRP_N300/N310/N320/N321_Getting_Started_Guide#Connecting_the_Device
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