The question is is there a way to check the signal on the INTEL side? The remote end is set to RS-FEC. No errors are seen on the switch, only on the intel NIC.
I also notice more errors with are seen when both interfaces are active in file transfers and when switch is in a forwarding mode of cut-through.
I don't see the issue when I use a copper SFP28 3 meter cable
System is running CentOS Linux release 7.0.1406
02:00.0 Ethernet controller: Intel Corporation Device 158b (rev 02)
netstat -i
Kernel Interface table
Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eno1 1500 39132473 0 1968 0 77116 0 0 0 BMRU
eno2 1500 0 0 0 0 0 0 0 0 BMU
ens2f0 1500 660153582805 54692 220376601 0 951323385811 0 0 0 BMU
ens2f1 1500 296165797983 79958 51730143 0 370485320414 0 0 0 BMRU
lo 65536 691346856 0 0 0 691346856 0 0 0 LRU
virbr0 1500 0 0 0 0 1 0 0 0 BMU
Any suggestions would be appreciated.