anchor.diff:  * For an application using multiple ports e.g. 2, the format of port_conf would be i.e. 
   [
          [
  -       port_name:tw0
  -	ip_addrs:[]
  +       “port_name”:“tw0”
  +	“ip_addrs”:[]
          ],
          [
  -       port_name:tw1
  -	ip_addrs:[]
  +       “port_name”:”tw1”
  +	“ip_addrs”:[]
          ]
   ]  
   
  
positive.code: 
  GCC Version: 4.8.1
  
  Intel NICs Used for testing purposes: Virtual Functions of Intel x520 and x540 Dual Port 10G NICs
  
  
   
  
negative.code: * Assign user specified parameters to the physical device.
  In the Twister API, all the above initialization steps are formed by single API call which is: *tw_init_global(argc, argv)*
  
  The user specified parameters for the physical device are provided in the “port_conf” file. This file must be present in the application directory. The parameters are further explained in the below section:
  
  === Port Management 
  The port management is assigning specific parameters which include IP address, subnet mask, gateway IP to the port. All this is done in the initialization module. The user just hast to provide a file to the module, which is *port_conf*. The configuration file should be in JSON format and a sample is provided below:
  