Server-side Network Load Balanced (NLB) Cluster
To handle the load of multiple Content Manager clients or custom clients connecting to the Content Manager server, create a Network Load Balanced (NLB) Cluster of servers exposed through a single IP address or host name. Install Content Manager, IIS and the server side of a client on each server. If the client is Content Manager Explorer, ensure that consecutive requests are sent to the same server by setting up sticky sessions in your NLB solution.