Hey Sebastian, It sounds like you might be seeing 2 different issues. Could you make sure to check that all of the network interfaces show up after a power cycle, as well as after running the image loader? On the device, you should see the RJ45 connection (eth0, the management interface) as well as sfp0 and sfp1. If you use the Linux utility `ip addr`, you should check to make sure the network interfaces that you expect to be working are not marked "NO-CARRIER".
Regards, Brent On Fri, Aug 17, 2018 at 2:59 PM, Sayyed Dormiani Tabatabaei via USRP-users < usrp-users@lists.ettus.com> wrote: > I had similar issues with my N310 but they were resolved after I fixed > some things. > > Please answer the following so we can get a better idea of what your setup > is: > > 1. What version of UHD is installed on the host machine? Does it match > with the version of UHD on the N310 SD card? > > 2. How is the host machine connected to the N310 when you get 'destination > host unreachable'? For example, mine is the following connection chain: > > N310 sfp+0 (XG FPGA image) -> sfp+ to 10 Gbe RJ45 adapter -> cat 6 cable > -> Ethernet to thunderbolt 3 adapter -> host laptop with thunderbolt 3 > > 3. Paste the output of the command 'ifconfig' from your N310 console and > the host machines console. > > > > For now I have three ideas on where your problem could be. > > 1. The MTU of your host machine and the N310 do not match. Type 'sudo > ifconfig <port_name> mtu 8000' in your host machines console to make the > mtu match the default of the N310. > > or > > 2. You are using the sfp+ to RJ45 adapter that came with the N310 in a 10 > Gbe context. This is rated for 1 Gbe and not 10. > > https://www.finisar.com/sites/default/files/downloads/ > finisar_fclf852xp2btl_1000base-t_rohs_compliant_copper_sfp_transceiver_ > product_specification_0.pdf > > or > > 3. You are using a cat 5 Ethernet cable. You need cat 6 for 10 Gbe to > work. They look the same but are very different on the inside. Your N310 > came with a cat 5 cable. > > On Fri, Aug 17, 2018 at 2:18 PM, Sebastian Olsen via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> So I'm able to ssh to our N310 using the management interface just fine, >> and uhd_usrp_probe dumps out the expected. >> >> However, when I try to ping the device through the streaming connection I >> get "Destination Host Unreachable" errors, and uhd_find_devices dumps out: >> -------------------------------------------------- >> -- UHD Device 0 >> -------------------------------------------------- >> Device Address: >> serial: 315A37D >> claimed: False >> mgmt_addr: 192.168.1.195 >> product: n310 >> reachable: No >> type: n3xx >> >> Now if I reload the fpga image by running 'uhd_image_loader --args >> "type=n3xx,addr=192.168.1.195,fpga=HG"', I'm able to ping the device >> through the streaming interface successfully, and uhd_find_devices dumps >> out: >> -------------------------------------------------- >> -- UHD Device 0 >> -------------------------------------------------- >> Device Address: >> serial: 315A37D >> addr: 192.168.10.2 >> claimed: False >> mgmt_addr: 192.168.1.195 >> mgmt_addr: 192.168.10.2 >> product: n310 >> type: n3xx >> >> However, if I try to run uhd_usrp_probe it errors out with: >> [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; >> UHD_3.13.0.HEAD-0-g5b236772 >> [INFO] [MPMD] Initializing 1 device(s) in parallel with args: >> mgmt_addr=192.168.10.2,type=n3xx,product=n310,serial=315A37D >> ,claimed=False,addr=192.168.10.2 >> [ERROR] [MPMD] No viable transport path found! >> [ERROR] [MPMD] Failure during block enumeration: RuntimeError: No viable >> transport path found! >> [INFO] [MPM.PeriphManager] init() called with device args >> `product=n310,mgmt_addr=192.168.10.2'. >> Error: RuntimeError: Failed to run enumerate_rfnoc_blocks() >> >> >> Furthermore, if I power off then power on the device, I can no longer >> ping it through the streaming connection and uhd_find_devices goes back to >> what it was originally. Can anyone point me in the right direction? >> >> Thanks! >> >> _______________________________________________ >> 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 > >
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
