On 01/22/2013 01:39 PM, Rob Townley wrote: > Have the nodes subscribe to a Multicast server. > > Using Pipes, Signals, and some other basic operating system course > terminology the name of which escapes me at the moment. > > setpriority() or nice up (-15) the priority of your software. Good thinking. There should only be one hop, and make that a layer 2 hop, between the multicast server and the systems. A 10ms delay through an IP router could impact the whole sync process. Again there IS 802.1 bridging designed for this; I could look it up if needed as I once did 802.1 standards, but now do 802.15 stuff... In IPv6 you could use anycasts instead, and this is an example of what anycasts were designed for.