I guess I should have been more specific. I have an internet gateway with a bandwidth monitoring program on it. I am not concerned with internet traffic as it is near 0 ! However, I have several large applications that manage to really chew up some bandwidth, namely citrix... I have over 200 machines spread across 4 locations on 6 T1's and 2 128K ISDN lines. At certain times through the day our network as a whole will get sluggish and I'm trying to figure out why. It is not internet traffic. On Wed, Apr 14, 2010 at 1:55 PM, Nathan England wrote: > Hello Hello, > > I'm looking for a program or something that can monitor my network as a > whole and tell me which machines are consuming all my bandwidth. Something > that I could install on a linux box, plug it into the network and stick it > in a corner and check it a week later would be ideal. All the tools I've > tried only tell me what the machine itself is consuming, not other things on > the network. Any recommendations out there? > > Nathan >