Linux下查看网络状态的方法

admin
1421
文章
3
评论
2020年1月28日15:05:39 评论 510 2683字阅读8分56秒

当我的设备在机房,懒得去查看网线连接情况;或者设备在远端,没有条件让眼睛亲临现场,我需要在终端查看设备网络接口的物理连接状态。基于此种场景,我就了解了几种关于命令查看网络状态的方法。

1. ifconfig

ifconfig是Linux系统自带命令,可以查看接口配置IP的情况、临时配置接口IP(永久配置可以使用yast或者修改/etc/sysconfig/nework/ifcfg-eth0)、查看网卡口的链路状态。

MYSUSE:/ # ifconfig eth0
eth0 Link encap:Ethernet HWaddr E0:36:76:D1:9F:B0
inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
inet6 addr: fe80::e236:76ff:fed1:9fb0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2200774 errors:0 dropped:4647 overruns:0 frame:0
TX packets:1139522 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2684945760 (2560.5 Mb) TX bytes:116659921 (111.2 Mb)
Interrupt:40

 2. yast/yast2

yast2是yast的图形化进阶版,像是windows系统里的控制面板功能。命令就是:yast调出yast界面-->选择Network Devices-->Network Settings,打开网络配置界面。

网卡口有连接网线和已经配置IP的状态:

Broadcom Ethernet controller
MAC : e0:36:76:d1:9f:b0
BusID : 0000:08:00.0

Device Name: eth0
Started automatically at boot
IP address: 192.168.0.1/24

网卡口未连接网线和未配置IP的状态:

82599EB 10 Gigabit Dual Port Backplane Connection (Not connected)
MAC : bc:62:0e:4f:b1:3b
BusID : 0000:02:00.1
Device Name: eth5

The device is not configured. Press Edit to configure.

 3. service network status

Linux中常用的服务查询方法,查询结果如下所示:

MYSUSE:/ # service network status
Checking optional network interfaces:
eth0 device: Broadcom Corporation NetXtreme BCM5719 Gigabi
eth0 IP address: 192.168.0.1/24
eth0 is up                           running
eth1 device: Broadcom Corporation NetXtreme BCM5719 Gigabi
No configuration found for eth1                  unused
eth2 device: Broadcom Corporation NetXtreme BCM5719 Gigabi
No configuration found for eth2                   unused
eth3 device: Broadcom Corporation NetXtreme BCM5719 Gigabi
No configuration found for eth3                   unused
eth4 device: Intel Corporation 82599EB 10 Gigabit Dual Por
eth4 DHCP4 client (dhcpcd) is running
eth4 . . . but is still waiting for data
eth4 is up                           waiting
eth5 device: Intel Corporation 82599EB 10 Gigabit Dual Por
No configuration found for eth5                   unused
Checking mandatory network interfaces:
lo
lo IP address: 127.0.0.1/8
secondary lo IP address: 127.0.0.2/8
lo is up                            running
Checking service network . . . . . . . . . . . running

 4. ip link show eth0

ip link工具查询可以指定接口进行增删改查。

MYSUSE:/ # ip link show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether e0:36:76:d1:9f:b0 brd ff:ff:ff:ff:ff:ff

5. ethtool eth0

ethtool比ip link工具功能更丰富一些。

MYSUSE:/ # ethtool eth0
Settings for eth0:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 8
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: d
Wake-on: d
Current message level: 0x000000ff (255)
drv probe link timer ifdown ifup rx_err tx_err
Link detected: yes

匿名

发表评论

匿名网友 填写信息

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen: