> > Well it certainly attempts to via stuff like carrier sense. But that > > is not fool proof and any time two routers hear a frame and both > > decide to forward it immediately there is a chance that they will both > > sense the air at the same time, decide that it is clear, and lose both > > their forwarded frames due to a collision. How often that happens is > > hard to say but we have observed that exact behavior a few years ago > > with an 802.11 multicast routing protocol and adding jitter > > significantly improved reliability. > > I'm really surprised by this since they both should jitter their > transmissions > already between CWmin and CWmax. Is that window somehow really super > small for what you're doing? I don't think so. -- Jesse