I tried that FS SFP+ transceiver again with HG image and it works when the other side is connected to a correct NIC. It seems to be another confirmation of FS SFP-10GLR-31 module. Thank you Rob and Ashish.
Zhongyuan Zhao PhD Candidate, Department of Computer Science & Engineering, University of Nebraska-Lincoln Suite 117, Schorr Center, Lincoln, Nebraska 68588-0115 On Wed, Jul 25, 2018 at 8:39 AM, Rob Kossler <rkoss...@nd.edu> wrote: > I have used this SFP+ transceiver for both the X310 and N310, both with XG > images. I do not remember if I tried the X310 with the HG image, but I > think so. I am using 10gbe with single mode fiber - approximately 100m. > > Rob > > On Wed, Jul 25, 2018 at 1:51 AM Zhongyuan Zhao <zhz...@cse.unl.edu> wrote: > >> Hi Rob, >> >> Thanks, I just tested FS SFP-10GLR-31 on HG image (I connected to SFP1) >> but unfortunately it does not work. Maybe I should do some more test. >> That module actually work for my Dell switch. >> Which FPGA image did you use? Are you connecting fiber to SFP0 or SFP1 or >> both? Is that 10Gb Ethernet connection? >> Thanks. >> >> Zhongyuan Zhao >> >> PhD Candidate, >> Department of Computer Science & Engineering, >> University of Nebraska-Lincoln >> Suite 117, Schorr Center, >> Lincoln, Nebraska 68588-0115 >> >> On Mon, Jul 23, 2018 at 12:45 PM, Rob Kossler <rkoss...@nd.edu> wrote: >> >>> I am successfully using this 10gbe SFP+/LC singlemode 1310nm transceiver >>> from fs.com. >>> FS SFP-10GLR-31 >>> I am also using this QSFP+/MTP transceiver (for Intel XL-710 in 4x10gbe >>> mode) >>> FS QSFP-PLR4-40G >>> >>> On Mon, Jul 23, 2018 at 1:10 PM Ashish Chaudhari via USRP-users < >>> usrp-users@lists.ettus.com> wrote: >>> >>>> Hi Zhongyuan, >>>> >>>> >> Does 10Gbps SFP+ transceiver backward compatible with 1Gbps socket? >>>> >>>> No it's not. Depending on what N310 FPGA image you build/use, the port >>>> speeds are locked down. The HG image is 1G on SFP0 and 10G on SFP1 >>>> whereas the XG image has 10G on both SFP ports. The transceiver might >>>> support both speeds but the USRP won't. >>>> >>>> >> Could you recommend any SFP transceivers that work on your case? both >>>> >> 1Gbps and 10Gbps. >>>> >>>> What speed do you need for your application? What is the speed of the >>>> switch that you are working with? The solutions for 1Gbps and 10Gbps >>>> are vastly different. Generally speaking fiber-optics that support >>>> 10GBASE-SR, -LR and -ER should work with the N310 when the SFP port is >>>> in 10G mode and optics that support 1000BASE-LX, -SX and -CX should >>>> work in 1G mode. For Ethernet, I should mention that certain switch >>>> and NIC vendors explicitly disallow certain non-approved optical >>>> modules, so on the switch side I would double check with the vendor >>>> that the transceiver works with your switch. On the USRP side, we >>>> accept all optics. I haven't used the specific Finisar module >>>> (FTLX1475D3BCV) but in general we have seen good results with Finisar, >>>> Amphenol FCI and Elpeus transceivers. We do most of our testing with >>>> full cable assemblies, although those might be a bit harder to find >>>> for the lengths that you are looking for. >>>> >>>> As a data point here are the ones that are known to work: >>>> https://www.mouser.com/ProductDetail/Finisar/FCBG110SD1C03?qs= >>>> sGAEpiMZZMsi6nco80NB4Pt5EfrefmupuvEijLXVquZ4ABfDcakyUQ%3d%3d >>>> https://www.serversupply.com/NETWORKING/TRANSCEIVER/10%20GIGABIT/INTEL/ >>>> FTLX8571D3BCVIT1.htm >>>> >>>> Thanks, >>>> Ashish >>>> >>>> >>>> On Sat, Jul 21, 2018 at 2:17 PM, Zhongyuan Zhao via USRP-users >>>> <usrp-users@lists.ettus.com> wrote: >>>> > Has anyone tried 10G/1G Dual Rate (10GBASE-LR/LW and 1000BASE-LX) 10km >>>> > 1310nm Single Mode Datacom SFP+ Optical Transceiver? >>>> > https://www.finisar.com/optical-transceivers/ftlx1475d3bcv >>>> > >>>> > Thanks. >>>> > >>>> > >>>> > >>>> > Zhongyuan Zhao >>>> > >>>> > PhD Candidate, >>>> > Department of Computer Science & Engineering, >>>> > University of Nebraska-Lincoln >>>> > Suite 117, Schorr Center, >>>> > Lincoln, Nebraska 68588-0115 >>>> > >>>> > On Fri, Jul 20, 2018 at 2:06 PM, Zhongyuan Zhao <zhz...@cse.unl.edu> >>>> wrote: >>>> >> >>>> >> Hi, >>>> >> >>>> >> I am working on a project where several N310s are connected to a >>>> >> fiber-Ethernet switch. The fibers are of single mode with length >>>> from 1km to >>>> >> 10km. My problem is selecting the right SFP transceivers. >>>> >> >>>> >> Currently, I used the official SFP to RJ45 converter (come from >>>> Ettus with >>>> >> N310) followed by another pair of RJ45 to SFP converter. >>>> >> >>>> >> https://www.amazon.com/gp/product/B06XC1VDMD/ref=oh_aui_ >>>> detailpage_o00_s00?ie=UTF8&psc=1 >>>> >> This is a work around solution. I tried to connect N310 and Dell >>>> N3048 >>>> >> switch (2 SFP ports) >>>> >> directly through a pair of 10Gtek SFP transceivers (1Gbps) that come >>>> with >>>> >> the RJ45 to SFP converter but it does not work. >>>> >> >>>> >> Could you recommend any SFP transceivers that work on your case? both >>>> >> 1Gbps and 10Gbps. >>>> >> Does 10Gbps SFP+ transceiver backward compatible with 1Gbps socket? >>>> >> >>>> >> Thank you very much! >>>> >> >>>> >> Regards, >>>> >> Zhongyuan Zhao >>>> >> >>>> >> PhD Candidate, >>>> >> Department of Computer Science & Engineering, >>>> >> University of Nebraska-Lincoln >>>> >> Suite 117, Schorr Center, >>>> >> Lincoln, Nebraska 68588-0115 >>>> > >>>> > >>>> > >>>> > _______________________________________________ >>>> > USRP-users mailing list >>>> > USRP-users@lists.ettus.com >>>> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>>> > >>>> >>>> _______________________________________________ >>>> USRP-users mailing list >>>> USRP-users@lists.ettus.com >>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>>> >>> >>
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