查看“Linux常用网卡命令”的源代码



=linux常用网卡命令=
==查看网卡的网速==
<pre>
mypc $sudo  ethtool eth0
Settings for eth0:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/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 
	                                     1000baseT/Full 
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: Yes
	Speed: 1000Mb/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)
			       drv probe ifdown ifup
	Link detected: yes
</pre>

==网卡控制器的制造商信息==
<pre>sudo lspci | grep Ethernet
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
</pre>

==查看网络实时带宽==
在linux的proc文件系统中，通过查看/proc/net/dev文件
可以得到每个网络接口的吞吐量，但是无法获得实时带宽

遇到个问题  从公司的pc rsync 到本本时 速度才最高 11.61MB/s 左右 ，而我记得上次从公司的CP rsync到内网测试机不只这个速度呀
在小伙伴的提醒下 查看一下 自己本本的网卡速度 果真只有 100Mb/s

=参考资料=
[http://wujunfeng.blog.51cto.com/3041/965292 linux网卡操作命令 ,查看Linux下网卡连接状态]
 
[http://www.bkjia.com/sjkqy/967773.html linux下查看网卡信息的命令，linux查看网卡命令]
 
[[category:ops]][[category:linux]]