+ name = '{}.{}'.format(interface, sub_id)
+ return name, sw_subif_index
+
+ @staticmethod
+ def create_gre_tunnel_interface(node, source_ip, destination_ip):
+ """Create GRE tunnel interface on node.
+
+ :param node: VPP node to add tunnel interface.
+ :param source_ip: Source of the GRE tunnel.
+ :param destination_ip: Destination of the GRE tunnel.
+ :type node: dict
+ :type source_ip: str
+ :type destination_ip: str
+ :return: Name and index of created GRE tunnel interface.
+ :rtype: tuple
+ :raises RuntimeError: If unable to create GRE tunnel interface.
+ """
+ output = VatExecutor.cmd_from_template(node, "create_gre.vat",
+ src=source_ip,
+ dst=destination_ip)
+ output = output[0]
+
+ if output["retval"] == 0:
+ sw_if_index = output["sw_if_index"]
+
+ vat_executor = VatExecutor()
+ vat_executor.execute_script_json_out("dump_interfaces.vat", node)
+ interface_dump_json = vat_executor.get_script_stdout()
+ name = VatJsonUtil.get_interface_name_from_json(
+ interface_dump_json, sw_if_index)
+ return name, sw_if_index
+ else:
+ raise RuntimeError('Unable to create GRE tunnel on node {}.'
+ .format(node))
+
+ @staticmethod
+ def vpp_create_loopback(node):
+ """Create loopback interface on VPP node.
+
+ :param node: Node to create loopback interface on.
+ :type node: dict
+ :return: SW interface index.
+ :rtype: int
+ """
+ out = VatExecutor.cmd_from_template(node, "create_loopback.vat")
+ if out[0].get('retval') == 0:
+ return out[0].get('sw_if_index')
+ else:
+ raise RuntimeError('Create loopback failed on node "{}"'
+ .format(node['host']))
+
+ @staticmethod
+ def vpp_enable_input_acl_interface(node, interface, ip_version,
+ table_index):
+ """Enable input acl on interface.
+
+ :param node: VPP node to setup interface for input acl.
+ :param interface: Interface to setup input acl.
+ :param ip_version: Version of IP protocol.
+ :param table_index: Classify table index.
+ :type node: dict
+ :type interface: str or int
+ :type ip_version: str
+ :type table_index: int
+ """
+ if isinstance(interface, basestring):
+ sw_if_index = Topology.get_interface_sw_index(node, interface)
+ else:
+ sw_if_index = interface
+
+ with VatTerminal(node) as vat:
+ vat.vat_terminal_exec_cmd_from_template("input_acl_int.vat",
+ sw_if_index=sw_if_index,
+ ip_version=ip_version,
+ table_index=table_index)