nic + detecting the presence of a carrier

[Robin Laing]

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 ...
> 
> -- 
> Gregory Machin
> gregory.machin at gmail.com <mailto:gregory.machin at gmail.com>
> www.linuxpro.co.za <http://www.linuxpro.co.za>
> 

Isn't this part of network manager tools?

I have just started playing with this and there were some things I read 
about starting and stopping services based on network availability.

Someone with more experience?
-- 
Robin Laing