[USRP-users] SFP port1 of USRP N310 does not work

Marcus D. Leech patchvonbraun at gmail.com
Wed Jul 29 08:42:10 EDT 2020


On 07/29/2020 08:14 AM, Heng Zhang via USRP-users wrote:
> Dear community,
>
> I follow this guide 
> https://kb.ettus.com/USRP_N300/N310/N320/N321_Getting_Started_Guide  
> and now I can connect to N310 by RJ45 port. And I also can connect to 
> SFP port0. However, when I  try to use SFP port1, it does not work. I 
> found that the green LED above SFP port 1 does not even illuminate 
> after connecting the PC to it. The network interface configuration of 
> PC is shown as follows
>
> enp1s0    Link encap:Ethernet  HWaddr d4:5d:64:9c:d1:86
>           inet addr:192.168.20.1  Bcast:192.168.20.255  Mask:255.255.255.0
>           inet6 addr: fe80::3ac5:ee40:457b:3554/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1
>           RX packets:1311 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1937 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:191173 (191.1 KB)  TX bytes:249297 (249.2 KB)
>
> How can I use 10 Gb SFP port1? Any advice would be appreciated.
>
> Regards,
> Heng
>
My guess is that you have a problem with your cabling, or the SFP+ 
module that you plugged in to the USRP.

What SFP+ module are you using?  What type of wiring/optical?


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