我有两个 HP NC523SFP 10Gb 2 端口（一个在 HP DL380e Gen8 上，另一个在 Dell PowerEdge 2950 上）两个系统都有 Centos 7，卡被检测到并且运行相同的固件。我已经使用 10Gtek SFP-H10GB-CU2M 电缆直接连接服务器，根据其他一些在网上发现的帖子看起来兼容（我也尝试过使用 10Gtek SFP-H10GB-CU2M 电缆）但问题是之间没有检测到链接这两张卡.. 在这些卡的另外两个插槽上，我有光纤适配器 10Gtek AXS85-192-M3-Cisco2，它们通过 LC-SC 光纤电缆连接到 Cisco 交换机，但这些都没有检测到链路。这里是两台服务器的 ethtool 输出：
DL380e Gen8（好像光纤和铜线收发器都认）
[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
戴尔 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
我可以检查什么？我试图强制链接速度，但我得到“不允许操作”我注意到在戴尔上铜电缆被检测为“端口：其他”
问题解决了，戴尔 2950 上的 enp8s0f0 端口坏了。我已经移动了 enp8s0f1 上的 DAC 电缆，现在我有了链接。确定这一点的测试是：