Hello,
I have a USRP X310, Ubuntu 16.04.02 and an Intel X710-DA4 with Intel's SFP+
cables.
i40e version: 1.6.42
firmware-version (NIC): 5.05 0x8000289d 1.1568.0
The NIC has a static IP address configured in /etc/network/interfaces.
The problem: the link is seldom up.
"ip addr show enp1s0f0" says that the enp1s0f0 is UP (ifconfig says that
also), but "state DOWN", and that it is configured properly with the static
IP address
"dmesg | grep enp1s0f0" shows "IPv6: ADDRCONF(NETDEV_UP): enp1s0f0: link is
not ready".
After some long random time (at least 15 minutes), the link/state goes UP
and everything is ok, but not always, and only after I do an arbitrary set
of "ifconfig down/up" commands, including reboots.
I tried 2 different Intel cables (both new).
When connecting a SFP+/RJ45 adapter to the X710, and 1 GigE Ethernet cable
(other side connected to the wall - LAN), it works perfectly.
I don't have another 10 GigE device so I can't compare and connect it to
the NIC, to determine whether the problem is in the NIC when it tries to
work in 10 GigE mode (because in 1 GigE mode it worked - with the LAN), in
the USRP, or in the cables.
Any ideas?
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