07-09-2008 09:36 PM
07-09-2008 10:58 PM
Indeed they don't have to be ... but you really want them to be. Latency is a killer for BES / Exchange ... you want RTT to be < 35 ms ... at 75 you'll probably start to really see issues ... over 100 real problems ... 250, you're probably swimming with the fishies. IIFC SQL latency should be < 100ms also.
BES & Exchange on disparate networks is a recipe for problems. Put them on the same LAN, whether it be 10/100/1000mbit.