1 files changed, 46 insertions, 0 deletions
diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index bf1ba1e8aa..a5f00ad03e 100644
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -461,3 +461,49 @@ class InterfaceUtil(object):
         else:
             raise RuntimeError('Unable to create VXLAN interface on node {}'
                                .format(node))
+
+    @staticmethod
+    def create_subinterface(node, interface, sub_id, outer_vlan_id,
+                            inner_vlan_id, type_subif):
+        """Create sub-interface on node.
+
+        :param node: Node to add sub-interface.
+        :param interface: Interface name on which create sub-interface.
+        :param sub_id: ID of the sub-interface to be created.
+        :param outer_vlan_id: Outer VLAN ID.
+        :param inner_vlan_id: Inner VLAN ID.
+        :param type_subif: Type of sub-interface.
+        :type node: dict
+        :type interface: str or int
+        :type sub_id: int
+        :type outer_vlan_id: int
+        :type inner_vlan_id: int
+        :type type_subif: str
+        :return: name and index of created sub-interface
+        :rtype: tuple
+        """
+
+        if isinstance(interface, basestring):
+            sw_if_index = Topology.get_interface_sw_index(node, interface)
+        else:
+            sw_if_index = interface
+
+        output = VatExecutor.cmd_from_template(node, "create_sub_interface.vat",
+                                               sw_if_index=sw_if_index,
+                                               sub_id=sub_id,
+                                               outer_vlan_id=outer_vlan_id,
+                                               inner_vlan_id=inner_vlan_id,
+                                               type_subif=type_subif)
+
+        if output[0]["retval"] == 0:
+            sw_subif_index = output[0]["sw_if_index"]
+            logger.trace('Created subinterface with index {}'
+                         .format(sw_subif_index))
+        else:
+            raise RuntimeError('Unable to create subinterface on node {}'
+                               .format(node['host']))
+
+        with VatTerminal(node) as vat:
+            vat.vat_terminal_exec_cmd('exec show interfaces')
+
+        return '{}.{}'.format(interface, sub_id), sw_subif_index