Hi Federico, I have several N310s and different types of 10Gb links: direct attach copper, multi-mode (850nm), single mode (1310nm). All have worked well including the transceivers from lower cost vendors such as FS and GTek. I have also used the X520-DA2. So, while it is possible that your transceivers are causing the problem, I want to point out that there are other causes for sequence errors related to the optimization of networking on the host. Do your sequence errors happen at all transfer rates or only at very high rates?
Rob On Wed, Jul 27, 2022 at 11:07 AM Federico Civerchia < federico.civerc...@sma-rty.com> wrote: > Dear Community, > > I have recently bought two new Ettus N310 and I have started to verify the > connection with the hosts. The NIC interfaces mounted in the hosts are > Intel X520-DA2 and Broadcom BCM57414 NetXtreme-E 10Gb/25Gb. > > Unfortunately, the benchmark for both USRP fails or I have errors like > "SSSSSSS" or "[D00:00:06.162407669] Detected Rx sequence error." > I have also checked with ping but I have packet loss even with the ICMP > protocol. I investigated a little bit and it seems that the problem may be > related to the SFP+ I have mounted in the N310. The modules are 850nm from > FS (here is the link > https://www.fs.com/products/74668.html?attribute=106&id=287339) and the > same are mounted in the NICs at the hosts side. > > Do you have some hints about this issue? Could you please suggest me SFP+ > modules that can work without any issue? Ettus sends the N310 with a SFP > 1Gbps from Avago, I guess the 10Gb version from this provider ( > AFBR-710ISMZ > <https://www.broadcom.com/products/fiber-optic-modules-components/networking/optical-transceivers/sfpplus/afbr-710ismz>) > can work as well. Could you please confirm me this? > > Thank you. > > Best regards, > > Federico > > > > _______________________________________________ > 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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