I am using ubuntu 10.04LTS. The Ganglia on all of my nodes is not reporting the network usage correctly. There is a fairly large amount of fluctuation on the actual network, but on ganglia it seems to show a flat rate for days at a time, then it will change to another flat rate.
It is probably worth noting that I have three main nodes, two of which are in the same datacentre, and another one which is in a different datacentre.
Essentially I would like to record all in and out on my ETH0 interface, ignoring the LO interface.