linux 下如何查看本机的网络速率

使用以下2个命令可以查看：

1）查看网卡型号

lspci

|

grep

Ethernet

这个命令可以查看你的网卡设备型号，根据型号就知道是什么性能了。

2）查看网卡实际通讯速率 dmesg

|

grep

eth0

这个命令可以列出网卡工作速率。看到

Up

1000Mps

full

duplex

...

有时候，我们需要看下linux系统网卡工作模式、速率等，比较常用到的命令是mii-tool、ethtool，下面简单看下即可。

查看下eth0网卡信息

[root@cloud ~]# mii-tool -v eth0

eth0: negotiated 100baseTx-FD flow-control, link ok

product info: vendor 00:00:20, model 32 rev 1

basic mode: autonegotiation enabled

basic status: autonegotiation complete, link ok

capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control

link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control

从上面可以看出eth0 工作 100M全双工自适应模式下

[root@cloud ~]# ethtool eth0

Settings for eth0:

Supported ports: [ TP MII ]

Supported link modes: 10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

Supports auto-negotiation: Yes

Advertised link modes: 10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

Advertised pause frame use: Symmetric Receive-only

Advertised auto-negotiation: Yes

Link partner advertised link modes: 10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

Link partner advertised pause frame use: Symmetric Receive-only

Link partner advertised auto-negotiation: Yes

Speed: 100Mb/s

Duplex: Full

Port: MII

PHYAD: 0

Transceiver: internal

Auto-negotiation: on

Supports Wake-on: pumbg

Wake-on: g

Current message level: 0x00000033 (51)

Link detected: yes

[root@cloud ~]#

linux下如何看网卡是千兆还是百兆的方法如下：

使用ethtool命令。

ethtool是Linux下用于查询及设置网卡参数的命令。

举例：

[root@hvrhub ~]# ethtool eth0

Settings for eth0:

Supported ports: [ TP MII ]

Supported link modes:   10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

Supports auto-negotiation: Yes

Advertised link modes:  10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

Advertised auto-negotiation: Yes

Speed: 100Mb/s  ------------------------------------>网卡速度

Duplex: Full

Port: MII

PHYAD: 0

Transceiver: internal

Auto-negotiation: on

Supports Wake-on: pumbg

Wake-on: g

Current message level: 0x00000033 (51)

Link detected: yes

详细参数参考：（//后面是注释，是原文的译文）

ethtool ethX /

ethtool –h //显示ethtool的命令帮助(help)

ethtool –i ethX //查询ethX网口的相关信息

ethtool –d ethX //查询ethX网口注册性信息

ethtool –r ethX //重置ethX网口到自适应模式

ethtool –S ethX //查询ethX网口收发包统计

ethtool –s ethX [speed 10|100|1000]\ //设置网口速率10/100/1000M

[duplex half|full]\ //设置网口半/全双工

[autoneg on|off]\ //设置网口是否自协商

[port tp|aui|bnc|mii]\ //设置网口类型

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