--- /usr/lib/centreon/plugins/centreon_cisco_standard_snmp.pl	2017-12-08 13:15:39.000000000 +0100
+++ /home/administrateur/centreon_cisco_standard_snmp.pl	2018-03-13 17:29:34.696613090 +0100
@@ -6688,6 +6688,7 @@ $fatpacked{"centreon/plugins/snmp.pm"} =
                     "contextengineid:s"         => { name => 'snmp_context_engine_id' },
                     "securityengineid:s"        => { name => 'snmp_security_engine_id' },
                     "snmp-errors-exit:s"        => { name => 'snmp_errors_exit', default => 'unknown' },
+                    "stp-overrite-status:s"     => { name => 'stp_overwrite_status' },
       });
       $options{options}->add_help(package => __PACKAGE__, sections => 'SNMP OPTIONS');
   
@@ -10834,6 +10835,8 @@ $fatpacked{"snmp_standard/mode/spanningt
   
   use strict;
   use warnings;
+
+  my $instance_mode;
   
   my %states = (
       1 => ['disabled', 'OK'], 
@@ -10850,6 +10853,10 @@ $fatpacked{"snmp_standard/mode/spanningt
       my ($class, %options) = @_;
       my $self = $class->SUPER::new(package => __PACKAGE__, %options);
       bless $self, $class;
+      $options{options}->add_options(arguments =>
+                                  { 
+                                          "stp-overrite-status:s"     => { name => 'stp_overwrite_status' },
+                                  });
       
       $self->{version} = '1.0';
       $options{options}->add_options(arguments =>
@@ -10859,9 +10866,20 @@ $fatpacked{"snmp_standard/mode/spanningt
       return $self;
   }
   
+  sub change_macros {
+      my ($self, %options) = @_;
+      
+      if (defined($self->{option_results}->{stp_overwrite_status})) {
+        $self->{option_results}->{stp_overwrite_status} = $self->{option_results}->{stp_overwrite_status};
+      }
+  }
+
   sub check_options {
       my ($self, %options) = @_;
       $self->SUPER::init(%options);
+
+      $instance_mode = $self;
+      $self->change_macros();
   }
   
   sub run {
@@ -10891,6 +10909,12 @@ $fatpacked{"snmp_standard/mode/spanningt
          
       }
       
+      my @stp_overwrite_status = {};
+      if (defined($self->{option_results}->{stp_overwrite_status})) {
+              @stp_overwrite_status = split /:/, $self->{option_results}->{stp_overwrite_status};
+              $self->{output}->output_add(long_msg => "Found " . ((scalar $#stp_overwrite_status)+1) . " custom STP topology");
+      }
+
       $self->{snmp}->load(oids => [$oid_dot1dBasePortIfIndex],
                               instances => [@instances]);
       my $result = $self->{snmp}->get_leef(nothing_quit => 1);
@@ -10912,10 +10936,27 @@ $fatpacked{"snmp_standard/mode/spanningt
           
           $self->{output}->output_add(long_msg => sprintf("Spanning Tree interface '%s' state is %s", $descr,
                                               ${$states{$stp_state}}[0]));
-          if (${$states{$stp_state}}[1] ne 'OK') {
-               $self->{output}->output_add(severity => ${$states{$stp_state}}[1],
-                                          short_msg => sprintf("Spanning Tree interface '%s' state is %s", $descr,
-                                                               ${$states{$stp_state}}[0]));
+
+          my $custom_status = 'forwarding';
+
+          for (my $e=0; $e <= (scalar $#stp_overwrite_status); $e++ ) {
+              my @stp_overwrite_status_ports = split /\@/, $stp_overwrite_status[$e];
+              if ( $stp_overwrite_status_ports[0] eq $descr )  {
+                $custom_status = $stp_overwrite_status_ports[1];
+              }
+          }
+
+          if (${$states{$stp_state}}[0] ne ${custom_status}) {
+               if($custom_status ne 'forwarding') {
+                   $self->{output}->output_add(severity => ${$states{6}}[1],
+                                              short_msg => sprintf("Spanning Tree interface '%s' state is %s should be %s", $descr,
+                                                                   ${$states{$stp_state}}[0], $custom_status));
+
+               } else  {
+                   $self->{output}->output_add(severity => ${$states{$stp_state}}[1],
+                                              short_msg => sprintf("Spanning Tree interface '%s' state is %s", $descr,
+                                                                   ${$states{$stp_state}}[0]));
+               }
           }
       }