Читать книгу Software Networks - Guy Pujolle - Страница 22

Virtualization is the fundamental property of the new generation of networks, where we make the move from hardware to software. While there is a noticeable reduction in performance at the start, it is compensated by more powerful, less costly physical machines. Nonetheless, the opposite move to virtualization is crucial: that of concretization, i.e. enabling the software to be executed on reconfigurable machines so that the properties of the software are retained and top-of-the-range performances can again be achieved.

Software networks form the backbone of the new means of data transport. They are agile, simple to implement and not costly. They can be modified or changed at will. Virtualization also enables us to uncouple functions and to use shared machines to host algorithms, which offers substantial savings in terms of resources and of qualified personnel.