I have a system running TrueNas Scale. For some odd reasons, the system does not see the link is up even though dmesg reports it up and the light is blinking on the port. I'm not sure if this is optic's compatibility because I am using a Ericson's one (recognized in Juniper). What is also odd is advertised auto-negotation is off. Here is some commands that I use to troubleshoot. I also tried both ports on the NIC.
Here is dmesg
admin@truenas[~]$ sudo dmesg | grep mlx
[ 1.865599] mlx4_core: Mellanox ConnectX core driver v4.0-0
[ 1.866114] mlx4_core: Initializing 0000:01:00.0
[ 1.866639] mlx4_core 0000:01:00.0: enabling device (0000 -> 0002)
[ 8.864380] mlx4_core 0000:01:00.0: DMFS high rate steer mode is: disabled performance optimized steering
[ 8.865246] mlx4_core 0000:01:00.0: 63.008 Gb/s available PCIe bandwidth (8.0 GT/s PCIe x8 link)
[ 8.943401] mlx4_en: Mellanox ConnectX HCA Ethernet driver v4.0-0
[ 8.943890] mlx4_en 0000:01:00.0: Activating port:1
[ 8.947954] mlx4_en: 0000:01:00.0: Port 1: Using 8 TX rings
[ 8.948294] mlx4_en: 0000:01:00.0: Port 1: Using 8 RX rings
[ 8.948836] mlx4_en: 0000:01:00.0: Port 1: Initializing port
[ 8.949441] mlx4_en 0000:01:00.0: registered PHC clock
[ 8.950038] mlx4_en 0000:01:00.0: Activating port:2
[ 8.951205] mlx4_core 0000:01:00.0 enp1s0: renamed from eth0
[ 8.953510] mlx4_en: 0000:01:00.0: Port 2: Using 8 TX rings
[ 8.954069] mlx4_en: 0000:01:00.0: Port 2: Using 8 RX rings
[ 8.954840] mlx4_en: 0000:01:00.0: Port 2: Initializing port
[ 8.980259] <mlx4_ib> mlx4_ib_add: mlx4_ib: Mellanox ConnectX InfiniBand driver v4.0-0
[ 8.982100] <mlx4_ib> mlx4_ib_add: counter index 2 for port 1 allocated 1
[ 8.982215] mlx4_core 0000:01:00.0 enp1s0d1: renamed from eth0
[ 8.982567] <mlx4_ib> mlx4_ib_add: counter index 3 for port 2 allocated 1
[ 11.659376] mlx4_en: enp1s0: Link Up
[ 185.391704] mlx4_en: enp1s0: Link Down
[ 257.903512] mlx4_en: enp1s0: Link Up
[ 1486.106437] mlx4_en: enp1s0: Link Down
[ 1524.842156] mlx4_core 0000:01:00.0: MLX4_CMD_MAD_IFC Get Module ID attr(ff60) port(1) i2c_addr(50) offset(0) size(1): Response Mad Status(31c) - cable is not connected
[ 1591.308231] mlx4_en: enp1s0: Link Up
[ 2026.000939] mlx4_en: enp1s0: Link Down
[ 2047.724983] mlx4_en: enp1s0: Link Up
[ 3657.633665] mlx4_en: enp1s0: Link Down
[ 3684.070133] mlx4_en: enp1s0d1: Link Up
[ 4577.747372] mlx4_en: enp1s0d1: Link Down
[ 4631.805428] mlx4_en: enp1s0: Link Up
Here is ethtool
admin@truenas[~]$ sudo ethtool enp1s0
Settings for enp1s0:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseX/Full
10000baseCR/Full
10000baseSR/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 1000baseX/Full
10000baseCR/Full
10000baseSR/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 10000Mb/s
Duplex: Full
Auto-negotiation: off
Port: FIBRE
PHYAD: 0
Transceiver: internal
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000014 (20)
link ifdown
Link detected: no
Here is ethtool for optics:
admin@truenas[~]$ sudo ethtool -m enp1s0
Identifier : 0x03 (SFP)
Extended identifier : 0x04 (GBIC/SFP defined by 2-wire interface ID)
Connector : 0x07 (LC)
Transceiver codes : 0x10 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Transceiver type : 10G Ethernet: 10G Base-SR
Encoding : 0x06 (64B/66B)
BR, Nominal : 10300MBd
Rate identifier : 0x00 (unspecified)
Length (SMF,km) : 0km
Length (SMF) : 0m
Length (50um) : 80m
Length (62.5um) : 30m
Length (Copper) : 0m
Length (OM3) : 300m
Laser wavelength : 850nm
Vendor name : FINISAR CORP.
Vendor OUI : 00:90:65
Vendor PN : FTLX8571D3BCL-ER
Vendor rev : A
Option values : 0x00 0x1a
Option : RX_LOS implemented
Option : TX_FAULT implemented
Option : TX_DISABLE implemented
BR margin, max : 0%
BR margin, min : 0%
Vendor SN : AP3193K
Date code : 130127
Optical diagnostics support : Yes
Laser bias current : 8.036 mA
Laser output power : 0.6284 mW / -2.02 dBm
Receiver signal average optical power : 0.7003 mW / -1.55 dBm
Module temperature : 41.64 degrees C / 106.95 degrees F
Module voltage : 3.2852 V
Alarm/warning flags implemented : Yes
Laser bias current high alarm : Off
Laser bias current low alarm : Off
Laser bias current high warning : Off
Laser bias current low warning : Off
Laser output power high alarm : Off
Laser output power low alarm : Off
Laser output power high warning : Off
Laser output power low warning : Off
Module temperature high alarm : Off
Module temperature low alarm : Off
Module temperature high warning : Off
Module temperature low warning : Off
Module voltage high alarm : Off
Module voltage low alarm : Off
Module voltage high warning : Off
Module voltage low warning : Off
Laser rx power high alarm : Off
Laser rx power low alarm : Off
Laser rx power high warning : Off
Laser rx power low warning : Off
Laser bias current high alarm threshold : 13.200 mA
Laser bias current low alarm threshold : 4.000 mA
Laser bias current high warning threshold : 12.600 mA
Laser bias current low warning threshold : 5.000 mA
Laser output power high alarm threshold : 1.0000 mW / 0.00 dBm
Laser output power low alarm threshold : 0.2512 mW / -6.00 dBm
Laser output power high warning threshold : 0.7943 mW / -1.00 dBm
Laser output power low warning threshold : 0.3162 mW / -5.00 dBm
Module temperature high alarm threshold : 78.00 degrees C / 172.40 degrees F
Module temperature low alarm threshold : -13.00 degrees C / 8.60 degrees F
Module temperature high warning threshold : 73.00 degrees C / 163.40 degrees F
Module temperature low warning threshold : -8.00 degrees C / 17.60 degrees F
Module voltage high alarm threshold : 3.7000 V
Module voltage low alarm threshold : 2.9000 V
Module voltage high warning threshold : 3.6000 V
Module voltage low warning threshold : 3.0000 V
Laser rx power high alarm threshold : 1.0000 mW / 0.00 dBm
Laser rx power low alarm threshold : 0.0100 mW / -20.00 dBm
Laser rx power high warning threshold : 0.7943 mW / -1.00 dBm
Laser rx power low warning threshold : 0.0158 mW / -18.01 dBm