diff --git a/network/juniper/common/junos/mode/stack.pm b/network/juniper/common/junos/mode/stack.pm
new file mode 100644
index 000000000..3160ec759
--- /dev/null
+++ b/network/juniper/common/junos/mode/stack.pm
@@ -0,0 +1,163 @@
+#
+# Copyright 2019 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package network::juniper::common::junos::mode::stack;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use Digest::MD5 qw(md5_hex);
+use centreon::plugins::templates::catalog_functions qw(catalog_status_threshold);
+
+sub custom_status_output {
+    my ($self, %options) = @_;
+
+    my $msg = sprintf("role: %s",
+        $self->{result_values}->{role});
+    return $msg;
+}
+
+sub custom_status_calc {
+    my ($self, %options) = @_;
+
+    $self->{result_values}->{roleLast} = $options{old_datas}->{$self->{instance} . '_role'};
+    $self->{result_values}->{role} = $options{new_datas}->{$self->{instance} . '_role'};
+    if (!defined($options{old_datas}->{$self->{instance} . '_role'})) {
+        $self->{error_msg} = "buffer creation";
+        return -2;
+    }
+
+    return 0;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+
+    $self->{maps_counters_type} = [
+        { name => 'stack', type => 1, cb_prefix_output => 'prefix_stack_output', message_multiple => 'All stack members are ok' },
+    ];
+    
+    $self->{maps_counters}->{stack} = [
+        { label => 'status', threshold => 0, set => {
+                key_values => [ { name => 'role' }, { name => 'display' } ],
+                closure_custom_calc => $self->can('custom_status_calc'),
+                closure_custom_output => $self->can('custom_status_output'),
+                closure_custom_perfdata => sub { return 0; },
+                closure_custom_threshold_check => \&catalog_status_threshold,
+            }
+        },
+    ];
+}
+
+sub prefix_stack_output {
+    my ($self, %options) = @_;
+
+    return "Stack member '" . $options{instance_value}->{display} . "' ";
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, statefile => 1, force_new_perfdata => 1);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments => {
+        'unknown-status:s'      => { name => 'unknown_status', default => '' },
+        'warning-status:s'      => { name => 'warning_status', default => '' },
+        'critical-status:s'     => { name => 'critical_status', default => '%{role} ne %{roleLast}' },
+    });
+
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::check_options(%options);
+    
+    $self->change_macros(macros => ['unknown_status', 'warning_status', 'critical_status']);
+}
+
+my %map_role = (
+    1 => 'master',
+    2 => 'backup',
+    3 => 'linecard',
+);
+
+my $mapping = {
+    jnxVirtualChassisMemberSerialnumber => { oid => '.1.3.6.1.4.1.2636.3.40.1.4.1.1.1.2' },
+    jnxVirtualChassisMemberRole         => { oid => '.1.3.6.1.4.1.2636.3.40.1.4.1.1.1.3', map => \%map_role },
+};
+my $oid_jnxVirtualChassisMemberEntry = '.1.3.6.1.4.1.2636.3.40.1.4.1.1.1';
+
+sub manage_selection {
+    my ($self, %options) = @_;
+
+    $self->{stack} = {};
+    my $snmp_result = $options{snmp}->get_table(
+        oid => $oid_jnxVirtualChassisMemberEntry,
+        start => $mapping->{jnxVirtualChassisMemberSerialnumber}->{oid},
+        end => $mapping->{jnxVirtualChassisMemberRole}->{oid},
+        nothing_quit => 1
+    );
+
+    foreach my $oid (keys %$snmp_result) {
+        next if ($oid !~ /^$mapping->{jnxVirtualChassisMemberRole}->{oid}\.(.*)$/);
+        my $instance_id = $1;
+        my $result = $options{snmp}->map_instance(mapping => $mapping, results => $snmp_result, instance => $instance_id);
+
+        $self->{stack}->{$instance_id} = {
+            display => $result->{jnxVirtualChassisMemberSerialnumber}, 
+            role => $result->{jnxVirtualChassisMemberRole},
+        };
+    }
+
+    $self->{cache_name} = "juniper_junos_" . $self->{mode} . '_' . $options{snmp}->get_hostname()  . '_' . $options{snmp}->get_port() . '_' .
+        (defined($self->{option_results}->{filter_counters}) ? md5_hex($self->{option_results}->{filter_counters}) : md5_hex('all'));
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check stack members.
+
+=over 8
+
+=item B<--unknown-status>
+
+Set warning threshold for status (Default: '').
+Can used special variables like: %{role}, %{roleLast}
+
+=item B<--warning-status>
+
+Set warning threshold for status (Default: '').
+Can used special variables like: %{role}, %{roleLast}
+
+=item B<--critical-status>
+
+Set critical threshold for status (Default: '%{role} ne %{roleLast}').
+Can used special variables like: %{role}, %{roleLast}
+
+=back
+
+=cut
diff --git a/network/juniper/common/screenos/snmp/mode/nsrp.pm b/network/juniper/common/screenos/snmp/mode/nsrp.pm
index 4397c0c42..90c047952 100644
--- a/network/juniper/common/screenos/snmp/mode/nsrp.pm
+++ b/network/juniper/common/screenos/snmp/mode/nsrp.pm
@@ -30,7 +30,7 @@ use centreon::plugins::templates::catalog_functions qw(catalog_status_threshold)
 sub custom_status_output {
     my ($self, %options) = @_;
 
-    my $msg = sprintf("status : %s",
+    my $msg = sprintf("status: %s",
         $self->{result_values}->{status});
     return $msg;
 }
diff --git a/network/juniper/ex/plugin.pm b/network/juniper/ex/plugin.pm
index cb92ff0ea..4318142e8 100644
--- a/network/juniper/ex/plugin.pm
+++ b/network/juniper/ex/plugin.pm
@@ -31,14 +31,15 @@ sub new {
 
     $self->{version} = '1.0';
     %{$self->{modes}} = (
-                         'hardware'             => 'network::juniper::common::junos::mode::hardware',
-                         'cpu-routing'          => 'network::juniper::common::junos::mode::cpurouting', # routing engine
-                         'memory-routing'       => 'network::juniper::common::junos::mode::memoryrouting', # routing engine
-                         'interfaces'           => 'snmp_standard::mode::interfaces', 
-                         'list-interfaces'      => 'snmp_standard::mode::listinterfaces',
-                         'list-storages'        => 'snmp_standard::mode::liststorages',
-                         'storage'              => 'snmp_standard::mode::storage',
-                         );
+        'cpu-routing'       => 'network::juniper::common::junos::mode::cpurouting', # routing engine
+        'hardware'          => 'network::juniper::common::junos::mode::hardware',
+        'interfaces'        => 'snmp_standard::mode::interfaces',
+        'list-interfaces'   => 'snmp_standard::mode::listinterfaces', 
+        'memory-routing'    => 'network::juniper::common::junos::mode::memoryrouting', # routing engine
+        'list-storages'     => 'snmp_standard::mode::liststorages',
+        'stack'             => 'network::juniper::common::junos::mode::stack',
+        'storage'           => 'snmp_standard::mode::storage',
+    );
 
     return $self;
 }