Use the Proxy Gateway widget to administer proxy groups defined for a proxy gateway. A proxy gateway is a module that receives Web service requests and forwards them to an endpoint defined in a proxy group.
Proxy groups contain virtual service names that you map to real service endpoints. A virtual service name can have one or more endpoints associated with it. If you define a list of endpoints, you determine the order in which the services are tried.
When the proxy gateway processes a request, the virtual service name in the configuration store must match the virtual service name in the request.