☰

如何在 RHEL 计算机上查找网卡详细信息

tag-icon • tag-icon networking rhel network-interface ethernet dmidecode
如何在 RHEL 计算机上查找网卡详细信息

是否可以找到有关Linux卡的详细信息？

例如我们尝试过：

dmidecode | grep -i network
                Function key-initiated network boot is supported
        Port Type: Network Port
        Port Type: Network Port
        Port Type: Network Port
        Port Type: Network Port
# dmidecode | grep -i eth
        Type: Ethernet
        Type: Ethernet
        Type: Ethernet
        Type: Ethernet

此详细信息没有提及有关网卡和性能等的任何内容。

对于可以提供有关网卡的这些详细信息的工具有什么建议吗？

答案1

为了获取网卡的品牌/型号，通常您运行：

$ lspci | grep -i Ethernet
02:01.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)

或者获取 NIC 的更多详细信息：

$ sudo lshw -class network
 *-network                 
       description: Ethernet interface
       product: 82545EM Gigabit Ethernet Controller (Copper)
       vendor: Intel Corporation
       physical id: 1
       bus info: pci@0000:02:01.0
       logical name: eth0
       version: 01
       serial: 00:0c:29:25:4d:0e
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 66MHz
       capabilities: pm pcix bus_master cap_list rom ethernet physical logical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000 driverversion=7.3.21-k8-NAPI duplex=full ip=192.168.5.143 latency=0 link=yes mingnt=255 multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:19 memory:fd5c0000-fd5dffff memory:fdff0000-fdffffff ioport:2000(size=64) memory:fd500000-fd50ffff

Greppingdmesg网络设备也可能有帮助：

$ dmesg | grep eth0
[    1.635942] e1000 0000:02:01.0 eth0: (PCI:66MHz:32-bit) 00:0c:29:25:4d:0e
[    1.635960] e1000 0000:02:01.0 eth0: Intel(R) PRO/1000 Network Connection
[    3.736090] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None
[    3.742639] 8021q: adding VLAN 0 to HW filter on device eth0

至于dmidecode，dmidecode -t baseboard可能会显示有关主板内置网卡的信息。

PS 至于 Unix SE 问题，在处理硬件问题时，完整的lscpi输出可能更有用。

答案2

您可以使用ethtool它为您提供有关卡的更多信息，还可以控制网络驱动程序和硬件设置。

例如：

# ethtool enp0s31f6 

Settings for enp0s31f6:
    Supported ports: [ TP ]
    Supported link modes:   10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
                            1000baseT/Full 
    Supported pause frame use: No
    Supports auto-negotiation: Yes
    Supported FEC modes: Not reported
    Advertised link modes:  10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
                            1000baseT/Full 
    Advertised pause frame use: No
    Advertised auto-negotiation: Yes
    Advertised FEC modes: Not reported
    Speed: 1000Mb/s
    Duplex: Full
    Port: Twisted Pair
    PHYAD: 1
    Transceiver: internal
    Auto-negotiation: on
    MDI-X: on (auto)
Cannot get wake-on-lan settings: Operation not permitted
    Current message level: 0x0000ffff (65535)
                   drv probe link timer ifdown ifup rx_err tx_err tx_queued intr tx_done rx_status pktdata hw wol 0x8000
    Link detected: yes

相关内容