Server-to-server communication is a very powerful feature of Openfire. You can certainly use it to take the load off one server, but you'll truly appreciate it when you have people spread over multiple locations, all wanting to collaborate.
In this chapter, we've looked at how users can connect and interact with users on remote Openfire servers. The real beauty of this form of communication is that users don't have to learn new tricks to add or communicate with offsite users. Due to the way server-to-server communication is designed and handled, users who move between multiple Openfire servers can stay connected with each other.