I have been messing with the XG image for my X310 and have run into a strange issue. First, here is the system setup:
- Intel X710 dual 10 Gb/s SFP+ NIC - 2x SFP+ direct attach copper cables - X310 (revision 4) - 2x UBX-160 (both v1 boards) - UHD_3.13.1.HEAD-0-ga0a71d10 - Ubuntu 16.04 When I updated the firmware of the radio I noted that port 0 was not showing up as having a link (per ethtool). I changed UHD versions several times and flashed the radio after each version change. At some point I walked away for ~ 15 minutes, and when I came back the link was established and uhd_find_devices was happy. I rebooted and was able to repeat this process several times. It seems that it takes ~ 10-20 minutes for the link to show as active in Linux. The radio shows lights on both port 0 and 1, but only port 1 comes up right away on the NIC. Any ideas as to why this is happening? It's a real bummer because while testing my current code, it's easy to get the radio into a bad state that requires restarting it. Then I get to wait for the link to come up. Thanks! -Dave
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