我有一台安装了 Ubuntu 20.04 LTS 的 Dell PowerEdge R620。该系统具有 Intel I350 NIC。
该卡有 4 个以太网端口。
启动后或正常运行时，我可以将以太网电缆插入任何端口，并且工作正常。
经过随机延迟（有时一个小时，有时半天）后，端口完全关闭，并完全停止闪烁。
- 拔下以太网电缆并将其重新插入相同的端口并没有帮助。
- 将电缆移至不同的端口即可。因此，在此延迟之后，该卡并未完全丢失。这个新端口也会在随机延迟后死亡。然后我就剩下 2 个可用的端口了。
- 重新启动系统将使所有 4 个端口恢复正常。使用它们会一一杀死端口，直到下次重新启动。
运行sudo lshw -C network给我以下输出：
*-network:0
description: Ethernet interface
product: I350 Gigabit Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:01:00.0
logical name: eno1
version: 01
serial: [HIDDEN]
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.6.0-k firmware=1.56, 0x800009b6, 14.0.12 latency=0 link=no multicast=yes port=twisted pair
resources: irq:55 memory:dcb00000-dcbfffff memory:dcff0000-dcff3fff memory:dc000000-dc07ffff
*-network:1
description: Ethernet interface
product: I350 Gigabit Network Connection
vendor: Intel Corporation
physical id: 0.1
bus info: pci@0000:01:00.1
logical name: eno2
version: 01
serial: [HIDDEN]
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.6.0-k duplex=full firmware=1.56, 0x800009b6, 14.0.12 ip=192.168.1.178 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:65 memory:dcc00000-dccfffff memory:dcff4000-dcff7fff memory:dc080000-dc0fffff
*-network:2
description: Ethernet interface
product: I350 Gigabit Network Connection
vendor: Intel Corporation
physical id: 0.2
bus info: pci@0000:01:00.2
logical name: eno3
version: 01
serial: [HIDDEN]
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.6.0-k firmware=1.56, 0x800009b6, 14.0.12 latency=0 link=no multicast=yes port=twisted pair
resources: irq:75 memory:dcd00000-dcdfffff memory:dcff8000-dcffbfff memory:dc100000-dc17ffff
*-network:3
description: Ethernet interface
product: I350 Gigabit Network Connection
vendor: Intel Corporation
physical id: 0.3
bus info: pci@0000:01:00.3
logical name: eno4
version: 01
serial: [HIDDEN]
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.6.0-k firmware=1.56, 0x800009b6, 14.0.12 latency=0 link=no multicast=yes port=twisted pair
resources: irq:85 memory:dce00000-dcefffff memory:dcffc000-dcffffff memory:dc180000-dc1fffff
*-network:0
description: Ethernet interface
physical id: 1
logical name: vethe154dcc
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:1
description: Ethernet interface
physical id: 2
logical name: veth43d1ef9
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:2
description: Ethernet interface
physical id: 3
logical name: veth1f9ef04
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:3
description: Ethernet interface
physical id: 4
logical name: veth9a6af7d
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:4
description: Ethernet interface
physical id: 5
logical name: br-e50fbe4bf77f
serial: 02:42:15:23:d0:43
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=172.18.0.1 link=yes multicast=yes
*-network:5
description: Ethernet interface
physical id: 6
logical name: docker0
serial: [HIDDEN]
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=172.17.0.1 link=no multicast=yes
*-network:6
description: Ethernet interface
physical id: 7
logical name: vethaa82509
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:7
description: Ethernet interface
physical id: 8
logical name: veth41fb182
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:8
description: Ethernet interface
physical id: 9
logical name: vethc14b450
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:9
description: Ethernet interface
physical id: a
logical name: veth657c987
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:10
description: Ethernet interface
physical id: b
logical name: veth867f6b9
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:11
description: Ethernet interface
physical id: c
logical name: veth911a044
serial: [HIDDEN]
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
自发布上述内容后将固件更新至19.5.12，问题仍然存在。