diff --git a/devapp/migrations/0006_auto_20170705_1403.py b/devapp/migrations/0006_auto_20170705_1403.py
new file mode 100644
index 0000000..33d3b75
--- /dev/null
+++ b/devapp/migrations/0006_auto_20170705_1403.py
@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9 on 2017-07-05 14:03
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import djing.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('devapp', '0005_auto_20170502_2232'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='portstates',
+            name='port',
+        ),
+        migrations.RemoveField(
+            model_name='port',
+            name='speed',
+        ),
+        migrations.AddField(
+            model_name='device',
+            name='mac_addr',
+            field=djing.fields.MACAddressField(blank=True, integer=True, null=True, unique=True),
+        ),
+        migrations.AddField(
+            model_name='device',
+            name='parent_dev',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='devapp.Device'),
+        ),
+        migrations.AddField(
+            model_name='port',
+            name='descr',
+            field=models.CharField(blank=True, max_length=60, null=True),
+        ),
+        migrations.AlterField(
+            model_name='device',
+            name='devtype',
+            field=models.CharField(choices=[('Dl', 'DLink switch'), ('Pn', 'PON OLT'), ('On', 'PON ONU')], default='Dl', max_length=2),
+        ),
+        migrations.DeleteModel(
+            name='PortStates',
+        ),
+    ]