'host1.yourdomain.com' => {
                                               'nodelabel' => ''host1.yourdomain.com'',
                                               'nodesysoid' => '.1.3.6.1.4.1.9.1.748',
                                               'ipaddr' => '159.140.67.253'
                                             },
          'host2.yourdomain.com' => {
                                               'nodelabel' => ''host2.yourdomain.com'',
                                               'nodesysoid' => '.1.3.6.1.4.1.9.1.1144',
                                               'ipaddr' => '159.140.67.254'
                                             },
          'host3.yourdomain.com' => {
                                              'nodelabel' => ''host3.yourdomain.com'',
                                              'nodesysoid' => '.1.3.6.1.4.1.9.1.223',
                                              'ipaddr' => '159.140.67.252'
                                            },
          'host4.yourdomain.com' => {
                                                'nodelabel' => 'host4.yourdomain.com',
                                                'nodesysoid' => '.1.3.6.1.4.1.9.1.748',