A system for balancing network loads among a group of computer servers. A load balancing module is provided for each server and includes multiple network ports for receiving network traffic and coupling messages to its server or to another module. The interconnect map for the modules is automatically determined by a topology discovery system and maintained by a topology update system. Each module monitors the loading and health of its server and provides this information to the other modules. One or more master modules are directly connected to an external network and route received traffic to their own servers and other servers through other modules or a networking switch based on a priority system. The priority system may be based on dynamic conditions of server capacities and current loading.
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