currently I am looking into an issue where the amount of network traffic is causing timeouts and client device dropoffs on an antiquated 10baseT network over a lan bridge. One side of the lan bridge (the one having problems) is 10mb/s network... the other side is 100mb/s. In troubleshooting why the devices were dropping off the 10mb side, we saw a lot of NFS traffic from the 100mb side. I didn't think I would see other client's NFS traffic on anything but their network trace, but in testing it on a couple of other devices I now can see NFS traffic for any device on our LAN -- is this normal? I can find no documentation about NFS traffic being broadcast traffic. Anyone have experience with this?

If you are running hubs and not switches this would be the expected behavior(for all types of traffic) and the reason hubs should be avoided.