IMPORTANT: Considerations in choosing a licensing strategy  

Licensing several Application Servers at once carries with it the advantage of not having to perform a licensing workflow on each of potentially many servers. In such a networked licensing topology, one server requests and activates licenses for itself, and these newly unlocked features will subsequently become unlocked on the remaining Application Servers (on the same site).

There is, however, a reduction in robustness in the networked model: If the Application Server originally used to request and activate licenses goes offline, the network-licensed features on the remaining servers may become locked again should these servers, in their own right, need to reboot or have their iControl Services restart. If resilience and robustness in feature licensing is critical to your network of Application Servers, you may want to consider individually licensing each Application Server.