speed of network connection

[Gilboa Davara]

On Mon, 2007-09-24 at 13:34 -0400, Jon Shorie wrote:
> Does anyone know how I can find out the speed of my network connection on a 
> fedora machine?
> 
> On my ubunto boxen, I do a 
> 
> dmesg | grep eth0
> 
> and it usually tells me 
> 
> something like:
> 
> [   24.527986] eth0: no IPv6 routers present
> [ 2466.508627] e1000: eth0: e1000_watchdog: NIC Link is Down
> [ 2472.385648] e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full 
> Duplex
> 
> but on fedora, I get:
> 
> eth0: RTL8168b/8111b at 0xf883e000, 00:16:e6:6c:42:a1, IRQ 17
> r8169: eth0: link up
> r8169: eth0: link up
> eth0: no IPv6 routers present
> r8169: eth0: link down
> r8169: eth0: link up
> 
> a uname -r gives me:
> 2.6.20-1.2944.fc6
> 
> any suggestions?  I want to know if I am getting a 100 or 1000 mb/s 
> connection.
> 
> Thank you
> 
> Jon Shorie
> Systems Administrator
> Medina County Sanitary Engineers
> 

$ ethtool ethX

Or, if your card doesn't support ethtool:

$ mii-tool ethX

- Gilboa