Re: nic + detecting the presence of a carrier

On 8/31/06, Gregory Machin <gregory.machin@xxxxxxxxx> wrote:
Is there not a value in /proc i can get ??


On 8/31/06, Frank Elsner <Elsner@xxxxxxxxxxxxxxxx> wrote:
> On Thu, 31 Aug 2006 12:04:12 +0200 Gregory Machin wrote:
> > Hi.
> > I need to write a script the can restart services based on where a cable
is
> > plugged into a nic or not ..
> > How do I get the status of the carrier on the nic ...
>
> The output of "ethtool ethX" contains the line
>
> Link detected: yes
>
> and the output of "mii-tool ethX" shows
>
> eth0: negotiated 100baseTx-FD, link ok
>
> which both should be usable for your purpose.
>
>
>
> --Frank Elsner
>
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--
Gregory Machin
gregory.machin@xxxxxxxxx
www.linuxpro.co.za
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Hi Gregory Machin!

You might find this interesting (note: email wrap will probably mess
up the display, I needed to put my terminal to full screen to properly
see it):

tod@tod-desktop:~/Desktop$ cat /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed
multicast|bytes packets errs drop fifo colls carrier compressed
lo: 832 13 0 0 0 0 0 0
832 13 0 0 0 0 0 0
eth0: 862723 2467 0 0 0 0 0 0
614738 2224 0 0 0 0 0 0
sit0: 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
tod@tod-desktop:~/Desktop$

Good hunting!

Tod

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