diff --git a/vmware_nsx/api_replay/client.py b/vmware_nsx/api_replay/client.py
index e491f64177..475ecc195a 100644
--- a/vmware_nsx/api_replay/client.py
+++ b/vmware_nsx/api_replay/client.py
@@ -487,7 +487,7 @@ class ApiReplayClient(utils.PrepareObjectForMigration):
             # If its a distributed router, we may also need to create its
             # internal network
             if self.int_vni_map and router['id'] in self.int_vni_map:
-                net_name = ("Internal network for distributed router %s" %
+                net_name = ("Internal network for router %s migration" %
                             router['id'])
                 net_body = {'tenant_id': nsxv_constants.INTERNAL_TENANT_ID,
                             'id': router['id'],
diff --git a/vmware_nsx/api_replay/utils.py b/vmware_nsx/api_replay/utils.py
index 210e2d90e6..12b0326331 100644
--- a/vmware_nsx/api_replay/utils.py
+++ b/vmware_nsx/api_replay/utils.py
@@ -19,6 +19,7 @@ from oslo_config import cfg
 from oslo_utils import uuidutils
 import webob.exc
 
+from vmware_nsx.common import nsxv_constants
 from vmware_nsxlib.v3 import nsx_constants as nsxlib_consts
 
 logging.basicConfig(level=logging.INFO)
@@ -251,6 +252,11 @@ class PrepareObjectForMigration(object):
         if net_vni_map and body['id'] in net_vni_map:
             body['vni'] = net_vni_map[body['id']]
 
+        if (body.get('project_id') == nsxv_constants.INTERNAL_TENANT_ID and
+            body.get('name').startswith('inter-edge-net')):
+            # rename the internal network
+            body['name'] = "Internal network for mdproxy migration"
+
         return body
 
     def prepare_subnet(self, subnet, direct_call=False):
diff --git a/vmware_nsx/plugins/nsx_p/plugin.py b/vmware_nsx/plugins/nsx_p/plugin.py
index 5ba01f8af9..3c07781b6b 100644
--- a/vmware_nsx/plugins/nsx_p/plugin.py
+++ b/vmware_nsx/plugins/nsx_p/plugin.py
@@ -68,6 +68,7 @@ from vmware_nsx.common import exceptions as nsx_exc
 from vmware_nsx.common import l3_rpc_agent_api
 from vmware_nsx.common import locking
 from vmware_nsx.common import managers
+from vmware_nsx.common import nsxv_constants
 from vmware_nsx.common import utils
 from vmware_nsx.db import db as nsx_db
 from vmware_nsx.extensions import api_replay
@@ -821,15 +822,22 @@ class NsxPolicyPlugin(nsx_plugin_common.NsxPluginV3Base):
 
         return created_net
 
+    def _check_internal_network(self, net):
+        if net.get('tenant_id') == nsxv_constants.INTERNAL_TENANT_ID:
+            msg = _("This network was created during the migration for "
+                    "internal usage and cannot be deleted")
+            raise n_exc.InvalidInput(error_message=msg)
+
     def delete_network(self, context, network_id):
         is_external_net = self._network_is_external(context, network_id)
+        network = self._get_network(context, network_id)
+        self._check_internal_network(network)
 
         if not is_external_net:
             # First disable DHCP & delete its port
             if self.use_policy_dhcp:
                 lock = 'nsxp_network_' + network_id
                 with locking.LockManager.get_lock(lock):
-                    network = self._get_network(context, network_id)
                     if not self._has_active_port(context, network_id):
                         self._disable_network_dhcp(context, network)
             elif cfg.CONF.nsx_p.allow_passthrough: