diff --git a/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku.py b/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku.py
index 27d030efe05b..60d04104cc0a 100644
--- a/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku.py
+++ b/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku.py
@@ -17,8 +17,9 @@ class ExpressRouteCircuitSku(Model):
 
     :param name: The name of the SKU.
     :type name: str
-    :param tier: The tier of the SKU. Possible values are 'Standard' and
-     'Premium'. Possible values include: 'Standard', 'Premium'
+    :param tier: The tier of the SKU. Possible values are 'Standard',
+     'Premium' or 'Basic'. Possible values include: 'Standard', 'Premium',
+     'Basic'
     :type tier: str or
      ~azure.mgmt.network.v2018_08_01.models.ExpressRouteCircuitSkuTier
     :param family: The family of the SKU. Possible values are: 'UnlimitedData'
diff --git a/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku_py3.py b/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku_py3.py
index 565fc298dd06..418166cc80f9 100644
--- a/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku_py3.py
+++ b/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/express_route_circuit_sku_py3.py
@@ -17,8 +17,9 @@ class ExpressRouteCircuitSku(Model):
 
     :param name: The name of the SKU.
     :type name: str
-    :param tier: The tier of the SKU. Possible values are 'Standard' and
-     'Premium'. Possible values include: 'Standard', 'Premium'
+    :param tier: The tier of the SKU. Possible values are 'Standard',
+     'Premium' or 'Basic'. Possible values include: 'Standard', 'Premium',
+     'Basic'
     :type tier: str or
      ~azure.mgmt.network.v2018_08_01.models.ExpressRouteCircuitSkuTier
     :param family: The family of the SKU. Possible values are: 'UnlimitedData'
diff --git a/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/network_management_client_enums.py b/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/network_management_client_enums.py
index a3e6aed94dfc..aa6eb3bef0ee 100644
--- a/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/network_management_client_enums.py
+++ b/azure-mgmt-network/azure/mgmt/network/v2018_08_01/models/network_management_client_enums.py
@@ -272,6 +272,7 @@ class ExpressRouteCircuitSkuTier(str, Enum):
 
     standard = "Standard"
     premium = "Premium"
+    basic = "Basic"
 
 
 class ExpressRouteCircuitSkuFamily(str, Enum):