Gathered the network interface information. @attr [Symbol] name the system
name for the network interface. @attr [Fixnum] in_bytes the number od bytes
that where received inbound. @attr [Fixnum] in_errors the number of errors
that where received inbound. @attr [Fixnum] in_drops the number of drops
that where received inbound. @attr [Fixnum] out_bytes the number od bytes
that where send outbound. @attr [Fixnum] out_errors the number od errors
that where send outbound. @attr [Fixnum] type the type of the interface
(bsd numbers)