+ @staticmethod
+ def enable_nat44_plugin(
+ node, inside_vrf=0, outside_vrf=0, users=0, user_memory=0,
+ sessions=0, session_memory=0, user_sessions=0, mode=u""):
+ """Enable NAT44 plugin.
+
+ :param node: DUT node.
+ :param inside_vrf: Inside VRF ID.
+ :param outside_vrf: Outside VRF ID.
+ :param users: Maximum number of users. Used only in endpoint-independent
+ mode.
+ :param user_memory: User memory size - overwrite auto calculated hash
+ allocation parameter if non-zero.
+ :param sessions: Maximum number of sessions.
+ :param session_memory: Session memory size - overwrite auto calculated
+ hash allocation parameter if non-zero.
+ :param user_sessions: Maximum number of sessions per user. Used only in
+ endpoint-independent mode.
+ :param mode: NAT44 mode. Valid values:
+ - endpoint-independent
+ - endpoint-dependent
+ - static-mapping-only
+ - connection-tracking
+ - out2in-dpo
+ :type node: dict
+ :type inside_vrf: str or int
+ :type outside_vrf: str or int
+ :type users: str or int
+ :type user_memory: str or int
+ :type sessions: str or int
+ :type session_memory: str or int
+ :type user_sessions: str or int
+ :type mode: str
+ """
+ cmd = u"nat44_plugin_enable_disable"
+ err_msg = f"Failed to enable NAT44 plugin on the host {node[u'host']}!"
+ args_in = dict(
+ enable=True,
+ inside_vrf=int(inside_vrf),
+ outside_vrf=int(outside_vrf),
+ users=int(users),
+ user_memory=int(user_memory),
+ sessions=int(sessions),
+ session_memory=int(session_memory),
+ user_sessions=int(user_sessions),
+ flags=getattr(
+ Nat44ConfigFlags,
+ f"NAT44_IS_{mode.replace(u'-', u'_').upper()}"
+ ).value
+ )
+
+ with PapiSocketExecutor(node) as papi_exec:
+ papi_exec.add(cmd, **args_in).get_reply(err_msg)
+
+ @staticmethod
+ def set_nat44_interface(node, interface, flag):
+ """Set inside and outside interfaces for NAT44.
+
+ :param node: DUT node.
+ :param interface: NAT44 interface.
+ :param flag: Interface NAT configuration flag name.
+ :type node: dict
+ :type interface: str
+ :type flag: str
+ """
+ cmd = u"nat44_interface_add_del_feature"
+
+ err_msg = f"Failed to set {flag} interface {interface} for NAT44 " \
+ f"on host {node[u'host']}"
+ args_in = dict(
+ sw_if_index=InterfaceUtil.get_sw_if_index(node, interface),
+ is_add=1,
+ flags=getattr(NatConfigFlags, flag).value
+ )
+
+ with PapiSocketExecutor(node) as papi_exec:
+ papi_exec.add(cmd, **args_in).get_reply(err_msg)
+