"Does each aolserver box need its own IP address or maybe they get local ip's via NAT by the load balancer.... " I forgot to answer that one. The Alteon AD3 does simple routing as well from what I remember so you can create another subnet for each group of servers if you want, it is just a more complicated configuration on the part of the alteon and thus harder to maintain two load balancers in a failover situation. If you can get the IP addresses in one big block or two that can make life easier, but it is not nessesary.
