def peer_vdc=(parray)
      if parray.empty?
        @set_args[:state] = 'no'
        current_peer_vdc = peer_vdc
        @set_args[:vdc] = current_peer_vdc[0]
        @set_args[:service] = current_peer_vdc[1]
        config_set('itd_service', 'peer_vdc', @set_args) unless
        current_peer_vdc[0].nil? || current_peer_vdc[1].nil?
      else
        @set_args[:state] = ''
        @set_args[:vdc] = parray[0]
        @set_args[:service] = parray[1]
        config_set('itd_service', 'peer_vdc', @set_args)
      end
      set_args_keys_default
    end
def peer_vdc=(parray)
      if parray.empty?
        @set_args[:state] = 'no'
        current_peer_vdc = peer_vdc
        @set_args[:vdc] = current_peer_vdc[0]
        @set_args[:service] = current_peer_vdc[1]
        config_set('itd_service', 'peer_vdc', @set_args) unless
        current_peer_vdc[0].nil? || current_peer_vdc[1].nil?
      else
        @set_args[:state] = ''
        @set_args[:vdc] = parray[0]
        @set_args[:service] = parray[1]
        config_set('itd_service', 'peer_vdc', @set_args)
      end
      set_args_keys_default
    end
peer_vdc is an array of vdc and service
 only one peer_vdc is allowed per service
 ex: ['switch', 'myservice']