diff --git a/topologie/migrations/0059_auto_20180415_2249.py b/topologie/migrations/0059_auto_20180415_2249.py
new file mode 100644
index 00000000..a58b710d
--- /dev/null
+++ b/topologie/migrations/0059_auto_20180415_2249.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-04-16 03:49
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('topologie', '0058_remove_switch_location'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='switch',
+            name='model',
+            field=models.ForeignKey(blank=True, help_text='Modèle du switch', null=True, on_delete=django.db.models.deletion.SET_NULL, to='topologie.ModelSwitch'),
+        ),
+        migrations.AlterField(
+            model_name='switch',
+            name='number',
+            field=models.PositiveIntegerField(help_text='Nombre de ports'),
+        ),
+        migrations.AlterField(
+            model_name='switch',
+            name='stack_member_id',
+            field=models.PositiveIntegerField(blank=True, help_text='Baie de brassage du switch', null=True),
+        ),
+        migrations.AlterField(
+            model_name='switch',
+            name='switchbay',
+            field=models.ForeignKey(blank=True, help_text='Baie de brassage du switch', null=True, on_delete=django.db.models.deletion.SET_NULL, to='topologie.SwitchBay'),
+        ),
+    ]
diff --git a/topologie/models.py b/topologie/models.py
index d8ff2d71..23b72b75 100644
--- a/topologie/models.py
+++ b/topologie/models.py
@@ -121,25 +121,33 @@ class Switch(AclMixin, Machine):
     id_max de la stack parente"""
     PRETTY_NAME = "Switch / Commutateur"
 
-    number = models.PositiveIntegerField()
+    number = models.PositiveIntegerField(
+        help_text="Nombre de ports"
+    )
     stack = models.ForeignKey(
         'topologie.Stack',
         blank=True,
         null=True,
         on_delete=models.SET_NULL
         )
-    stack_member_id = models.PositiveIntegerField(blank=True, null=True)
+    stack_member_id = models.PositiveIntegerField(
+        blank=True,
+        null=True,
+        help_text="Baie de brassage du switch"
+    )
     model = models.ForeignKey(
         'topologie.ModelSwitch',
         blank=True,
         null=True,
-        on_delete=models.SET_NULL
+        on_delete=models.SET_NULL,
+        help_text="Modèle du switch"
     )
     switchbay = models.ForeignKey(
         'topologie.SwitchBay',
         blank=True,
         null=True,
-        on_delete=models.SET_NULL
+        on_delete=models.SET_NULL,
+        help_text="Baie de brassage du switch"
     )
 
     class Meta: