If you are familiar with configuring classic WebSpeed, you will find that load balancing (distributing client requests among multiple servers) is quite different in PAS for OpenEdge. In PAS for OpenEdge, there is no NameServer or ubroker.properties file to implement load balancing. Instead, load balancing is accomplished through industry standard HTTP options.
This section describes three of the most popular load balancing options for PAS for OpenEdge. It includes an overview of configuration tasks for each option, and, where applicable, describes the strengths and weaknesses of the option. There are many more 3rd party load balancing products available. It is not possible to recommend the best load balancing option for your application