I have been getting overrun errors on 3 different ASA 5550 HA pairs with traffic rates less than 100Mbps total. I was told by one TAC guy to split the traffic between the two slots so that traffic comes in one and exits the other to maximize throughput because the 5550 was designed to work that way. Another TAC guy told me to enable ethernet flow control to alleviate the overrun errors because the traffic was bursty, but this doesn't seem to address the root cause of the problem to either. TCP traffic is bursty by nature and has it own flow control mechanism. I can't seem to find any detailed info on why traffic needs to be split for 100Mbps when the marketting throughput number is 1.2G. Is this a design flaw or limitation? Is there a way to alleviate overrun errors?