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The extensions of RestServerSBDevice are related to the CPU and NIC resources present in commodity servers (but potentially not present in other REST-based devices).

The server device driver provides services to the Metron control plane application, which uses the ONOS northbound interface to translate JSON-based NFV service chain

descriptions to real code that can be deployed on commodity servers through the server device driver. The next section describes the software module that runs on the server-side;

this module interacts with the server device driver in order to realize the controller's instructions.

Server Side

At the server side we need a process that is able to communicate with the server device driver using a REST-based channel (i.e., HTTP messages).

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