diff --git a/Event/SwitchParameterSetEvent.php b/Event/SwitchParameterSetEvent.php
new file mode 100644
index 0000000..16275b5
--- /dev/null
+++ b/Event/SwitchParameterSetEvent.php
@@ -0,0 +1,37 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: boellmann
+ * Date: 02.10.18
+ * Time: 14:38
+ */
+
+namespace DoL\LdapBundle\Event;
+
+
+use Symfony\Component\EventDispatcher\Event;
+
+class SwitchParameterSetEvent extends Event
+{
+    const PARAMETERSET = 'dol_ldap.manager.switch_parameter_set';
+
+    private $parameterSet = [];
+
+    /**
+     * SwitchParameterSet constructor.
+     * @param array $parameterSet
+     */
+    public function __construct(array $parameterSet)
+    {
+        $this->parameterSet = $parameterSet;
+    }
+
+    /**
+     * @return array
+     */
+    public function getParameterSet(): array
+    {
+        return $this->parameterSet;
+    }
+
+}
diff --git a/Ldap/LdapManager.php b/Ldap/LdapManager.php
index 9c4a55c..d368a53 100644
--- a/Ldap/LdapManager.php
+++ b/Ldap/LdapManager.php
@@ -3,6 +3,7 @@
 namespace DoL\LdapBundle\Ldap;
 
 use DoL\LdapBundle\Driver\LdapDriverInterface;
+use DoL\LdapBundle\Event\SwitchParameterSetEvent;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\Security\Core\User\UserInterface;
 use DoL\LdapBundle\Hydrator\HydratorInterface;
@@ -167,5 +168,6 @@ private function switchParameterSet(array $parameter)
             $this->params = [];
         }
         $this->setLdapAttr();
+        $this->eventDispatcher->dispatch(SwitchParameterSetEvent::PARAMETERSET, new SwitchParameterSetEvent($parameter));
     }
 }
diff --git a/Tests/Event/SwitchParameterSetEventTest.php b/Tests/Event/SwitchParameterSetEventTest.php
new file mode 100644
index 0000000..5feeb62
--- /dev/null
+++ b/Tests/Event/SwitchParameterSetEventTest.php
@@ -0,0 +1,50 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: boellmann
+ * Date: 02.10.18
+ * Time: 14:44
+ */
+
+namespace DoL\LdapBundle\Event;
+
+
+class SwitchParameterSetEventTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var SwitchParameterSetEvent
+     */
+    private $event;
+    /**
+     * @var array
+     */
+    private $parameter;
+
+    protected function setUp()
+    {
+        $this->parameter = [
+            'driver' => [
+                // SOME ATTRIBUTES
+            ],
+            'user' => [
+                'baseDn' => 'ou=Groups,dc=example,dc=com',
+                'filter' => '(attr0=value0)',
+                'attributes' => [
+                    [
+                        'ldap_attr' => 'uid',
+                        'user_method' => 'setUsername',
+                    ],
+                ],
+            ],
+        ];
+        $this->event = new SwitchParameterSetEvent($this->parameter);
+    }
+
+
+    public function testGetter()
+    {
+        $this->assertTrue(is_array($this->event->getParameterSet()));
+        $this->assertArraySubset($this->parameter,$this->event->getParameterSet());
+    }
+
+}
diff --git a/Tests/Ldap/LdapManagerTest.php b/Tests/Ldap/LdapManagerTest.php
index dbc3b8a..4fec33f 100644
--- a/Tests/Ldap/LdapManagerTest.php
+++ b/Tests/Ldap/LdapManagerTest.php
@@ -2,6 +2,7 @@
 
 namespace DoL\LdapBundle\Tests\Ldap;
 
+use DoL\LdapBundle\Event\SwitchParameterSetEvent;
 use DoL\LdapBundle\Hydrator\HydratorInterface;
 use DoL\LdapBundle\Ldap\LdapManager;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
@@ -150,6 +151,15 @@ public function testBind()
             ->method('bind')
             ->with($user, $this->equalTo($password))
             ->will($this->returnValue(true));
+        $this->eventDispatcher->expects($this->once())
+            ->method('dispatch')
+            ->with(
+                $this->equalTo('dol_ldap.manager.switch_parameter_set'),
+                $this->callback(function(SwitchParameterSetEvent $event){
+                    $parameterSet = $event->getParameterSet();
+                    return (is_array($parameterSet) AND isset($parameterSet['driver']));
+                })
+            );
 
         self::assertTrue($this->ldapManager->bind($user, $password));
     }