code: def enable(self, ospf_profile=None, router_id=None):
          
          ospf_profile = element_resolver(ospf_profile) if ospf_profile \
              else OSPFProfile('Default OSPFv2 Profile').href
  
          self.data.update(
              enabled=True,
              ospfv2_profile_ref=ospf_profile,
              router_id=router_id)
docs: Enable OSPF on this engine. For master engines, enable
          OSPF on the virtual firewall.
  
          Once enabled on the engine, add an OSPF area to an interface::
  
              engine.dynamic_routing.ospf.enable()
              interface = engine.routing.get(0)
              interface.add_ospf_area(OSPFArea('myarea'))
  
          :param str,OSPFProfile ospf_profile: OSPFProfile element or str
              href; if None, use default profile
          :param str router_id: single IP address router ID
          :raises ElementNotFound: OSPF profile not found
          :return: None