cheking ethernet status

[TDdata]

Hi,


I need a script for redHat that will monitor all the installed ethernet cards and if one of them goes down it will put others down as well.

What i thought is ,writing a script to get a file output of the ethernet status one by one. and check whether the file name is exist or not. If file is there stop other ethernet cards. I put a crontab entry for every second checking.

I am sure someone knows a better way. Can you please advice?


Kind Regards

 

[Annihilannic]

That is a strange requirement... out of curiosity, why do you want to do this?

cron can't run jobs every second; a better way would be to write a script that loops continuously, sleeping for a second between each loop.

You can use the ethtool command to check the state of each interface (check for "Link detected: yes"). No need to create files, you can just use the logic in your script to offline the other interfaces as soon as one is discovered that is down.

Annihilannic.

 

[Edcrosbys]

I'd also be interested in why...
There might be a better solution...