# File lib/fog/compute/ecloud/models/server.rb, line 198
        def add_nic(network)
          unit_number = nics.map { |n| n[:UnitNumber].to_i }.sort[-1] + 1
          vm_nics = nics << { :UnitNumber => unit_number, :Network => { :href => network.href, :name => network.name, :type => "application/vnd.tmrk.cloud.network" } }
          data = service.virtual_machine_edit_hardware_configuration(href + "/hardwareConfiguration", _configuration_data(:nics => vm_nics)).body
          service.tasks.new(:href => data[:href])[0]
        end