I have two HP NC523SFP 10Gb 2-port (1 on a HP DL380e Gen8 and the other on Dell PowerEdge 2950) both systems have Centos 7, the cards are detect and are running the same firmware. I have connected directly the servers with 10Gtek SFP-H10GB-CU2M cable which according to some other posts found online looks compatible (I've tried also with 10Gtek SFP-H10GB-CU2M cable) but the problem is that the link is not detected between the two cards.. On the other two slots of these cards I have the fiber adapters 10Gtek AXS85-192-M3-Cisco2 these are connected to a Cisco switch with an LC-SC fiber cable but neither these gets the link detected. Here the ethtool output from both servers:
DL380e Gen8 (seems that both fiber and copper transreceiver are recognized)
[root@hpe ~]# ifconfig ens4f0
ens4f0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 8c:dc:d4:91:5e:50 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 90
[root@hpe ~]# ifconfig ens4f1
ens4f1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 8c:dc:d4:91:5e:54 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 91
[root@hpe ~]# ethtool ens4f0
Settings for ens4f0:
Supported ports: [ TP FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
MDI-X: Unknown
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000000 (0)
Link detected: no
[root@hpe ~]# ethtool ens4f1
Settings for ens4f1:
Supported ports: [ TP FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: FIBRE
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000000 (0)
Link detected: no
Dell PowerEdge 2950
[root@dell ~]# ifconfig enp8s0f0
enp8s0f0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether c4:34:6b:cc:cf:60 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 31
[root@dell ~]# ifconfig enp8s0f1
enp8s0f1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether c4:34:6b:cc:cf:64 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 32
[root@dell ~]# ethtool enp8s0f0
Settings for enp8s0f0:
Supported ports: [ TP FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: Other
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000000 (0)
Link detected: no
[root@dell ~]# ethtool enp8s0f1
Settings for enp8s0f1:
Supported ports: [ TP FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: FIBRE
PHYAD: 1
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000000 (0)
Link detected: no
What can I check? I have tried to force the link speed but I get "Operation not permitted" I noticed that on the Dell the copper cable is detected as "Port: Other"
