On 2022-07-29 07:55, Federico Civerchia wrote:
Yes, the issue was related to the optical cables in single mode. Using
MMF cables resolved the problem.
Thank you for your support.
Federico
Tha's excellent news! Glad it worked out for you.
On 28/07/22 21:22, Marcus D. Leech wrote:
On 2022-07-27 11:06, Federico Civerchia 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
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SOmethign I noitced is that your transceivers are designed for MMF
cable, and I think you said that you had single-mode cable. I don't
know enough about fiber systems to know
whether this would be a problem or not.
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