On 01/20/2014 10:28 AM, Ranjan Maitra wrote:
Hi,
I was wondering how wireless signal strength (as displayed by the network-manager applet) is calculated. There is a percentage reported: what does this percent mean and where does NetworkManager get its values from?
While I am here, I also wanted to know the answer to the question as to how the interfaces are decided in latter-day Fedoras: to elucidate, it used to be that eth0 and wlan0 and ppp0 were the interfaces. Now it seems to depend (and vary from one machine to the other). How do these get decided nowadays? Is there a generic way to get to the correct interface to use in programming? I am thinking of conky which requires the interface (from ifconfig, say) to set up signal strength, etc.
That would be biosdevname. It has been around for some time now.
http://docs.fedoraproject.org/en-US/Fedora/15/html/Release_Notes/sect-Releas...
http://docs.fedoraproject.org/en-US/Fedora/18/html/Release_Notes/sect-Releas...
More info:
https://apps.fedoraproject.org/packages/biosdevname
http://linux.dell.com/files/biosdevname/
http://linux.dell.com/files/whitepapers/consistent_network_device_naming_in_...
- rejy (rmc)