Re: Byte throughput of an interface?

["Matthew Gillen" <user=50@nabble.blu.org>]

 John Chambers wrote: 
> Something that turned out to be surprisingly difficult to  find:  How 
> does  one  learn  the  actual data rate (in Bytes) of a linux network 
> interface? 
> 
> There are lots of tools that give the packet rate, starting with good 
> old "netstat -i".  It's interesting and useful info.   But  what  I'm 
> trying  to  find  is  the total byte (or byte/sec) throughput of some 
> interfaces.  I know it's gotta be there somewhere, probably in one of 
> those  directories  under  /proc, but I don't seem to be guessing the 
> right keywords to find it. 
> 
> Anyone know off the top of their head?