linux查看接口连接状态

最新推荐文章于 2025-07-09 11:25:29 发布

原创最新推荐文章于 2025-07-09 11:25:29 发布 · 4.9k 阅读

2 ·

CC 4.0 BY-SA版权

文章标签：

#linux #link #连接

linux 专栏收录该内容

33 篇文章

订阅专栏

本文介绍了通过ethtool命令查看网卡em1和em2的详细配置与状态信息，包括支持的端口类型、链路模式、协商能力、当前速度、双工模式等，并展示了当前网络配置中活动设备的状态。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

ethtool

# ethtool em1
Settings for em1:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Link partner advertised link modes:  10baseT/Half 10baseT/Full 
                                             100baseT/Half 100baseT/Full 
                                             1000baseT/Full 
        Link partner advertised pause frame use: No
        Link partner advertised auto-negotiation: Yes
        Speed: 1000Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: off
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x000000ff (255)
        Link detected: yes
# ethtool em2
Settings for em2:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Half 1000baseT/Full 
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Speed: Unknown!
        Duplex: Unknown! (255)
        Port: Twisted Pair
        PHYAD: 2
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: Unknown
        Supports Wake-on: g
        Wake-on: d
        Current message level: 0x000000ff (255)
        Link detected: no

network

# /etc/init.d/network status
Configured devices:
lo em1 em2 em3 em4 p3p1 p3p2
Currently active devices:
lo em1 port0 port1 vlan1 dummy1